How to make html numeric input wrap back around












-2














So my question is, if you have an HTML numeric input with max={100} and min={50} how can you make it so that if you hit the down arrow when it is set to 50, to wrap back around to 100. I tried doing this manually by manipulating the onChange handler method, but this messes with the ability to type in the input box, making it so that if I begin to type 100, the first key pressed (1) is below 50 and sets it to 50.










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  • 4




    Post your code, please.
    – Antihype Bird
    Dec 27 '18 at 18:26










  • Use the onkeyup handler and look for up arrow key and down arrow key and handle appropriately.
    – John Sheridan
    Dec 27 '18 at 18:42










  • thanks @JohnSheridan
    – Young Scooter
    Dec 27 '18 at 18:47










  • also can't post code. For client.
    – Young Scooter
    Dec 27 '18 at 18:47










  • If you need help with code you need to post it, or else we can't help, and nor does it qualify as a proper question w/o it. Furthermore, we don't need the client's code, we need a code that reproduce the issue.
    – LGSon
    Dec 27 '18 at 20:17


















-2














So my question is, if you have an HTML numeric input with max={100} and min={50} how can you make it so that if you hit the down arrow when it is set to 50, to wrap back around to 100. I tried doing this manually by manipulating the onChange handler method, but this messes with the ability to type in the input box, making it so that if I begin to type 100, the first key pressed (1) is below 50 and sets it to 50.










share|improve this question


















  • 4




    Post your code, please.
    – Antihype Bird
    Dec 27 '18 at 18:26










  • Use the onkeyup handler and look for up arrow key and down arrow key and handle appropriately.
    – John Sheridan
    Dec 27 '18 at 18:42










  • thanks @JohnSheridan
    – Young Scooter
    Dec 27 '18 at 18:47










  • also can't post code. For client.
    – Young Scooter
    Dec 27 '18 at 18:47










  • If you need help with code you need to post it, or else we can't help, and nor does it qualify as a proper question w/o it. Furthermore, we don't need the client's code, we need a code that reproduce the issue.
    – LGSon
    Dec 27 '18 at 20:17
















-2












-2








-2







So my question is, if you have an HTML numeric input with max={100} and min={50} how can you make it so that if you hit the down arrow when it is set to 50, to wrap back around to 100. I tried doing this manually by manipulating the onChange handler method, but this messes with the ability to type in the input box, making it so that if I begin to type 100, the first key pressed (1) is below 50 and sets it to 50.










share|improve this question













So my question is, if you have an HTML numeric input with max={100} and min={50} how can you make it so that if you hit the down arrow when it is set to 50, to wrap back around to 100. I tried doing this manually by manipulating the onChange handler method, but this messes with the ability to type in the input box, making it so that if I begin to type 100, the first key pressed (1) is below 50 and sets it to 50.







javascript html






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asked Dec 27 '18 at 18:21









Young Scooter

797




797








  • 4




    Post your code, please.
    – Antihype Bird
    Dec 27 '18 at 18:26










  • Use the onkeyup handler and look for up arrow key and down arrow key and handle appropriately.
    – John Sheridan
    Dec 27 '18 at 18:42










  • thanks @JohnSheridan
    – Young Scooter
    Dec 27 '18 at 18:47










  • also can't post code. For client.
    – Young Scooter
    Dec 27 '18 at 18:47










  • If you need help with code you need to post it, or else we can't help, and nor does it qualify as a proper question w/o it. Furthermore, we don't need the client's code, we need a code that reproduce the issue.
    – LGSon
    Dec 27 '18 at 20:17
















  • 4




    Post your code, please.
    – Antihype Bird
    Dec 27 '18 at 18:26










  • Use the onkeyup handler and look for up arrow key and down arrow key and handle appropriately.
    – John Sheridan
    Dec 27 '18 at 18:42










  • thanks @JohnSheridan
    – Young Scooter
    Dec 27 '18 at 18:47










  • also can't post code. For client.
    – Young Scooter
    Dec 27 '18 at 18:47










  • If you need help with code you need to post it, or else we can't help, and nor does it qualify as a proper question w/o it. Furthermore, we don't need the client's code, we need a code that reproduce the issue.
    – LGSon
    Dec 27 '18 at 20:17










4




4




Post your code, please.
– Antihype Bird
Dec 27 '18 at 18:26




Post your code, please.
– Antihype Bird
Dec 27 '18 at 18:26












Use the onkeyup handler and look for up arrow key and down arrow key and handle appropriately.
– John Sheridan
Dec 27 '18 at 18:42




Use the onkeyup handler and look for up arrow key and down arrow key and handle appropriately.
– John Sheridan
Dec 27 '18 at 18:42












thanks @JohnSheridan
– Young Scooter
Dec 27 '18 at 18:47




thanks @JohnSheridan
– Young Scooter
Dec 27 '18 at 18:47












also can't post code. For client.
– Young Scooter
Dec 27 '18 at 18:47




also can't post code. For client.
– Young Scooter
Dec 27 '18 at 18:47












If you need help with code you need to post it, or else we can't help, and nor does it qualify as a proper question w/o it. Furthermore, we don't need the client's code, we need a code that reproduce the issue.
– LGSon
Dec 27 '18 at 20:17






If you need help with code you need to post it, or else we can't help, and nor does it qualify as a proper question w/o it. Furthermore, we don't need the client's code, we need a code that reproduce the issue.
– LGSon
Dec 27 '18 at 20:17














3 Answers
3






active

oldest

votes


















2














Something like this:




const input = document.querySelector('input');
input.addEventListener('keydown', e => {
const min = parseInt(input.min);
const max = parseInt(input.max);
if(e.keyCode === 38 || e.code === 'ArrowUp') {
e.preventDefault();
input.value++;
if(input.value > max) input.value = min;
}
if(e.keyCode === 40 || e.code === 'ArrowDown') {
e.preventDefault();
input.value--;
if(input.value < min) input.value = max;
}
})

/* hide spin button */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
display: none;
}
input[type=number] {
font-size: 3em;
}

<input type="number" min="50" max="100" value="50" autofocus/>








share|improve this answer





























    1














    change handler triggers every time the input value changes. You need to use keyup handler as John mentioned in the comment.






    $('#input').on('keyup', function(e) { // Trigger when a key is pressed and then released
    if (e.which === 38) { // Check if the pressed key is Up Arrow
    var val = $('#input').val();
    if (!isNaN(val)) { // Check if the value is a valid number
    val++;
    if (val > 100) val = 50; // If it exceeds 100, go back to 50
    if (val < 50) val = 100; // Vice versa
    $('#input').val(val);
    }
    else $('#input').val(50); // If the value is not a number, set it to 50
    }
    if (e.which === 40) { // Check if the pressed key is Down Arrow
    var val = $('#input').val();
    if (!isNaN(val)) {
    val--;
    if (val > 100) val = 50;
    if (val < 50) val = 100;
    $('#input').val(val);
    }
    else $('#input').val(50);
    }
    });

    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <input type='text' id='input' value="50">








    share|improve this answer










    New contributor




    Nayeemul Islam Swad is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.


















    • confused what's suppose to be happening here. Don't onChange and keyup both trigger when a single number is typed?
      – Young Scooter
      Dec 27 '18 at 19:47










    • Oh, I think I get it. I should check if up arrow is hit while the value === 100, and then set input to 50
      – Young Scooter
      Dec 27 '18 at 19:49










    • You're right. I've added some comments in the code to explain what each line does. Also if this answer solves the problem you're facing correctly, can you kindly mark it as accepted? That would give me a few reputations which I need to comment on posts.
      – Nayeemul Islam Swad
      Dec 27 '18 at 20:08












    • your code doesn't run though. But I think I get it.
      – Young Scooter
      Dec 28 '18 at 4:22








    • 1




      Ahh..Okay I misunderstood your requirements. Anyways thanks for letting me know what was wrong with this answer. Cheers! :)
      – Nayeemul Islam Swad
      Dec 28 '18 at 15:58



















    0














    You can use closures to keep track of the value in the input and then check the updated values against the elements own min and max attributes. Something like below:






    function ticker(initVal, el, max, min) {
    var currentValue = initVal;
    return function(n) {
    if (currentValue == n) {
    if (n == max) {
    el.value = min;
    } else if (n == min) {
    el.value = max;
    }
    }
    currentValue = n;
    }
    }

    var target = document.querySelector('#myNumber');
    var updateEl = ticker(target.value, target, target.max, target.min);
    document.querySelector('#myNumber').addEventListener('click', (e) => updateEl(e.target.value));

    <input type="number" id="myNumber" value="1" max="5" min="1">








    share|improve this answer





















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      3 Answers
      3






      active

      oldest

      votes








      3 Answers
      3






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      2














      Something like this:




      const input = document.querySelector('input');
      input.addEventListener('keydown', e => {
      const min = parseInt(input.min);
      const max = parseInt(input.max);
      if(e.keyCode === 38 || e.code === 'ArrowUp') {
      e.preventDefault();
      input.value++;
      if(input.value > max) input.value = min;
      }
      if(e.keyCode === 40 || e.code === 'ArrowDown') {
      e.preventDefault();
      input.value--;
      if(input.value < min) input.value = max;
      }
      })

      /* hide spin button */
      input[type=number]::-webkit-inner-spin-button,
      input[type=number]::-webkit-outer-spin-button {
      display: none;
      }
      input[type=number] {
      font-size: 3em;
      }

      <input type="number" min="50" max="100" value="50" autofocus/>








      share|improve this answer


























        2














        Something like this:




        const input = document.querySelector('input');
        input.addEventListener('keydown', e => {
        const min = parseInt(input.min);
        const max = parseInt(input.max);
        if(e.keyCode === 38 || e.code === 'ArrowUp') {
        e.preventDefault();
        input.value++;
        if(input.value > max) input.value = min;
        }
        if(e.keyCode === 40 || e.code === 'ArrowDown') {
        e.preventDefault();
        input.value--;
        if(input.value < min) input.value = max;
        }
        })

        /* hide spin button */
        input[type=number]::-webkit-inner-spin-button,
        input[type=number]::-webkit-outer-spin-button {
        display: none;
        }
        input[type=number] {
        font-size: 3em;
        }

        <input type="number" min="50" max="100" value="50" autofocus/>








        share|improve this answer
























          2












          2








          2






          Something like this:




          const input = document.querySelector('input');
          input.addEventListener('keydown', e => {
          const min = parseInt(input.min);
          const max = parseInt(input.max);
          if(e.keyCode === 38 || e.code === 'ArrowUp') {
          e.preventDefault();
          input.value++;
          if(input.value > max) input.value = min;
          }
          if(e.keyCode === 40 || e.code === 'ArrowDown') {
          e.preventDefault();
          input.value--;
          if(input.value < min) input.value = max;
          }
          })

          /* hide spin button */
          input[type=number]::-webkit-inner-spin-button,
          input[type=number]::-webkit-outer-spin-button {
          display: none;
          }
          input[type=number] {
          font-size: 3em;
          }

          <input type="number" min="50" max="100" value="50" autofocus/>








          share|improve this answer












          Something like this:




          const input = document.querySelector('input');
          input.addEventListener('keydown', e => {
          const min = parseInt(input.min);
          const max = parseInt(input.max);
          if(e.keyCode === 38 || e.code === 'ArrowUp') {
          e.preventDefault();
          input.value++;
          if(input.value > max) input.value = min;
          }
          if(e.keyCode === 40 || e.code === 'ArrowDown') {
          e.preventDefault();
          input.value--;
          if(input.value < min) input.value = max;
          }
          })

          /* hide spin button */
          input[type=number]::-webkit-inner-spin-button,
          input[type=number]::-webkit-outer-spin-button {
          display: none;
          }
          input[type=number] {
          font-size: 3em;
          }

          <input type="number" min="50" max="100" value="50" autofocus/>








          const input = document.querySelector('input');
          input.addEventListener('keydown', e => {
          const min = parseInt(input.min);
          const max = parseInt(input.max);
          if(e.keyCode === 38 || e.code === 'ArrowUp') {
          e.preventDefault();
          input.value++;
          if(input.value > max) input.value = min;
          }
          if(e.keyCode === 40 || e.code === 'ArrowDown') {
          e.preventDefault();
          input.value--;
          if(input.value < min) input.value = max;
          }
          })

          /* hide spin button */
          input[type=number]::-webkit-inner-spin-button,
          input[type=number]::-webkit-outer-spin-button {
          display: none;
          }
          input[type=number] {
          font-size: 3em;
          }

          <input type="number" min="50" max="100" value="50" autofocus/>





          const input = document.querySelector('input');
          input.addEventListener('keydown', e => {
          const min = parseInt(input.min);
          const max = parseInt(input.max);
          if(e.keyCode === 38 || e.code === 'ArrowUp') {
          e.preventDefault();
          input.value++;
          if(input.value > max) input.value = min;
          }
          if(e.keyCode === 40 || e.code === 'ArrowDown') {
          e.preventDefault();
          input.value--;
          if(input.value < min) input.value = max;
          }
          })

          /* hide spin button */
          input[type=number]::-webkit-inner-spin-button,
          input[type=number]::-webkit-outer-spin-button {
          display: none;
          }
          input[type=number] {
          font-size: 3em;
          }

          <input type="number" min="50" max="100" value="50" autofocus/>






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Dec 27 '18 at 20:28









          Jakob E

          1,244179




          1,244179

























              1














              change handler triggers every time the input value changes. You need to use keyup handler as John mentioned in the comment.






              $('#input').on('keyup', function(e) { // Trigger when a key is pressed and then released
              if (e.which === 38) { // Check if the pressed key is Up Arrow
              var val = $('#input').val();
              if (!isNaN(val)) { // Check if the value is a valid number
              val++;
              if (val > 100) val = 50; // If it exceeds 100, go back to 50
              if (val < 50) val = 100; // Vice versa
              $('#input').val(val);
              }
              else $('#input').val(50); // If the value is not a number, set it to 50
              }
              if (e.which === 40) { // Check if the pressed key is Down Arrow
              var val = $('#input').val();
              if (!isNaN(val)) {
              val--;
              if (val > 100) val = 50;
              if (val < 50) val = 100;
              $('#input').val(val);
              }
              else $('#input').val(50);
              }
              });

              <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
              <input type='text' id='input' value="50">








              share|improve this answer










              New contributor




              Nayeemul Islam Swad is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.


















              • confused what's suppose to be happening here. Don't onChange and keyup both trigger when a single number is typed?
                – Young Scooter
                Dec 27 '18 at 19:47










              • Oh, I think I get it. I should check if up arrow is hit while the value === 100, and then set input to 50
                – Young Scooter
                Dec 27 '18 at 19:49










              • You're right. I've added some comments in the code to explain what each line does. Also if this answer solves the problem you're facing correctly, can you kindly mark it as accepted? That would give me a few reputations which I need to comment on posts.
                – Nayeemul Islam Swad
                Dec 27 '18 at 20:08












              • your code doesn't run though. But I think I get it.
                – Young Scooter
                Dec 28 '18 at 4:22








              • 1




                Ahh..Okay I misunderstood your requirements. Anyways thanks for letting me know what was wrong with this answer. Cheers! :)
                – Nayeemul Islam Swad
                Dec 28 '18 at 15:58
















              1














              change handler triggers every time the input value changes. You need to use keyup handler as John mentioned in the comment.






              $('#input').on('keyup', function(e) { // Trigger when a key is pressed and then released
              if (e.which === 38) { // Check if the pressed key is Up Arrow
              var val = $('#input').val();
              if (!isNaN(val)) { // Check if the value is a valid number
              val++;
              if (val > 100) val = 50; // If it exceeds 100, go back to 50
              if (val < 50) val = 100; // Vice versa
              $('#input').val(val);
              }
              else $('#input').val(50); // If the value is not a number, set it to 50
              }
              if (e.which === 40) { // Check if the pressed key is Down Arrow
              var val = $('#input').val();
              if (!isNaN(val)) {
              val--;
              if (val > 100) val = 50;
              if (val < 50) val = 100;
              $('#input').val(val);
              }
              else $('#input').val(50);
              }
              });

              <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
              <input type='text' id='input' value="50">








              share|improve this answer










              New contributor




              Nayeemul Islam Swad is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.


















              • confused what's suppose to be happening here. Don't onChange and keyup both trigger when a single number is typed?
                – Young Scooter
                Dec 27 '18 at 19:47










              • Oh, I think I get it. I should check if up arrow is hit while the value === 100, and then set input to 50
                – Young Scooter
                Dec 27 '18 at 19:49










              • You're right. I've added some comments in the code to explain what each line does. Also if this answer solves the problem you're facing correctly, can you kindly mark it as accepted? That would give me a few reputations which I need to comment on posts.
                – Nayeemul Islam Swad
                Dec 27 '18 at 20:08












              • your code doesn't run though. But I think I get it.
                – Young Scooter
                Dec 28 '18 at 4:22








              • 1




                Ahh..Okay I misunderstood your requirements. Anyways thanks for letting me know what was wrong with this answer. Cheers! :)
                – Nayeemul Islam Swad
                Dec 28 '18 at 15:58














              1












              1








              1






              change handler triggers every time the input value changes. You need to use keyup handler as John mentioned in the comment.






              $('#input').on('keyup', function(e) { // Trigger when a key is pressed and then released
              if (e.which === 38) { // Check if the pressed key is Up Arrow
              var val = $('#input').val();
              if (!isNaN(val)) { // Check if the value is a valid number
              val++;
              if (val > 100) val = 50; // If it exceeds 100, go back to 50
              if (val < 50) val = 100; // Vice versa
              $('#input').val(val);
              }
              else $('#input').val(50); // If the value is not a number, set it to 50
              }
              if (e.which === 40) { // Check if the pressed key is Down Arrow
              var val = $('#input').val();
              if (!isNaN(val)) {
              val--;
              if (val > 100) val = 50;
              if (val < 50) val = 100;
              $('#input').val(val);
              }
              else $('#input').val(50);
              }
              });

              <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
              <input type='text' id='input' value="50">








              share|improve this answer










              New contributor




              Nayeemul Islam Swad is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.









              change handler triggers every time the input value changes. You need to use keyup handler as John mentioned in the comment.






              $('#input').on('keyup', function(e) { // Trigger when a key is pressed and then released
              if (e.which === 38) { // Check if the pressed key is Up Arrow
              var val = $('#input').val();
              if (!isNaN(val)) { // Check if the value is a valid number
              val++;
              if (val > 100) val = 50; // If it exceeds 100, go back to 50
              if (val < 50) val = 100; // Vice versa
              $('#input').val(val);
              }
              else $('#input').val(50); // If the value is not a number, set it to 50
              }
              if (e.which === 40) { // Check if the pressed key is Down Arrow
              var val = $('#input').val();
              if (!isNaN(val)) {
              val--;
              if (val > 100) val = 50;
              if (val < 50) val = 100;
              $('#input').val(val);
              }
              else $('#input').val(50);
              }
              });

              <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
              <input type='text' id='input' value="50">








              $('#input').on('keyup', function(e) { // Trigger when a key is pressed and then released
              if (e.which === 38) { // Check if the pressed key is Up Arrow
              var val = $('#input').val();
              if (!isNaN(val)) { // Check if the value is a valid number
              val++;
              if (val > 100) val = 50; // If it exceeds 100, go back to 50
              if (val < 50) val = 100; // Vice versa
              $('#input').val(val);
              }
              else $('#input').val(50); // If the value is not a number, set it to 50
              }
              if (e.which === 40) { // Check if the pressed key is Down Arrow
              var val = $('#input').val();
              if (!isNaN(val)) {
              val--;
              if (val > 100) val = 50;
              if (val < 50) val = 100;
              $('#input').val(val);
              }
              else $('#input').val(50);
              }
              });

              <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
              <input type='text' id='input' value="50">





              $('#input').on('keyup', function(e) { // Trigger when a key is pressed and then released
              if (e.which === 38) { // Check if the pressed key is Up Arrow
              var val = $('#input').val();
              if (!isNaN(val)) { // Check if the value is a valid number
              val++;
              if (val > 100) val = 50; // If it exceeds 100, go back to 50
              if (val < 50) val = 100; // Vice versa
              $('#input').val(val);
              }
              else $('#input').val(50); // If the value is not a number, set it to 50
              }
              if (e.which === 40) { // Check if the pressed key is Down Arrow
              var val = $('#input').val();
              if (!isNaN(val)) {
              val--;
              if (val > 100) val = 50;
              if (val < 50) val = 100;
              $('#input').val(val);
              }
              else $('#input').val(50);
              }
              });

              <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
              <input type='text' id='input' value="50">






              share|improve this answer










              New contributor




              Nayeemul Islam Swad is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.









              share|improve this answer



              share|improve this answer








              edited Dec 28 '18 at 11:24





















              New contributor




              Nayeemul Islam Swad is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.









              answered Dec 27 '18 at 18:58









              Nayeemul Islam Swad

              816




              816




              New contributor




              Nayeemul Islam Swad is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.





              New contributor





              Nayeemul Islam Swad is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.






              Nayeemul Islam Swad is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.












              • confused what's suppose to be happening here. Don't onChange and keyup both trigger when a single number is typed?
                – Young Scooter
                Dec 27 '18 at 19:47










              • Oh, I think I get it. I should check if up arrow is hit while the value === 100, and then set input to 50
                – Young Scooter
                Dec 27 '18 at 19:49










              • You're right. I've added some comments in the code to explain what each line does. Also if this answer solves the problem you're facing correctly, can you kindly mark it as accepted? That would give me a few reputations which I need to comment on posts.
                – Nayeemul Islam Swad
                Dec 27 '18 at 20:08












              • your code doesn't run though. But I think I get it.
                – Young Scooter
                Dec 28 '18 at 4:22








              • 1




                Ahh..Okay I misunderstood your requirements. Anyways thanks for letting me know what was wrong with this answer. Cheers! :)
                – Nayeemul Islam Swad
                Dec 28 '18 at 15:58


















              • confused what's suppose to be happening here. Don't onChange and keyup both trigger when a single number is typed?
                – Young Scooter
                Dec 27 '18 at 19:47










              • Oh, I think I get it. I should check if up arrow is hit while the value === 100, and then set input to 50
                – Young Scooter
                Dec 27 '18 at 19:49










              • You're right. I've added some comments in the code to explain what each line does. Also if this answer solves the problem you're facing correctly, can you kindly mark it as accepted? That would give me a few reputations which I need to comment on posts.
                – Nayeemul Islam Swad
                Dec 27 '18 at 20:08












              • your code doesn't run though. But I think I get it.
                – Young Scooter
                Dec 28 '18 at 4:22








              • 1




                Ahh..Okay I misunderstood your requirements. Anyways thanks for letting me know what was wrong with this answer. Cheers! :)
                – Nayeemul Islam Swad
                Dec 28 '18 at 15:58
















              confused what's suppose to be happening here. Don't onChange and keyup both trigger when a single number is typed?
              – Young Scooter
              Dec 27 '18 at 19:47




              confused what's suppose to be happening here. Don't onChange and keyup both trigger when a single number is typed?
              – Young Scooter
              Dec 27 '18 at 19:47












              Oh, I think I get it. I should check if up arrow is hit while the value === 100, and then set input to 50
              – Young Scooter
              Dec 27 '18 at 19:49




              Oh, I think I get it. I should check if up arrow is hit while the value === 100, and then set input to 50
              – Young Scooter
              Dec 27 '18 at 19:49












              You're right. I've added some comments in the code to explain what each line does. Also if this answer solves the problem you're facing correctly, can you kindly mark it as accepted? That would give me a few reputations which I need to comment on posts.
              – Nayeemul Islam Swad
              Dec 27 '18 at 20:08






              You're right. I've added some comments in the code to explain what each line does. Also if this answer solves the problem you're facing correctly, can you kindly mark it as accepted? That would give me a few reputations which I need to comment on posts.
              – Nayeemul Islam Swad
              Dec 27 '18 at 20:08














              your code doesn't run though. But I think I get it.
              – Young Scooter
              Dec 28 '18 at 4:22






              your code doesn't run though. But I think I get it.
              – Young Scooter
              Dec 28 '18 at 4:22






              1




              1




              Ahh..Okay I misunderstood your requirements. Anyways thanks for letting me know what was wrong with this answer. Cheers! :)
              – Nayeemul Islam Swad
              Dec 28 '18 at 15:58




              Ahh..Okay I misunderstood your requirements. Anyways thanks for letting me know what was wrong with this answer. Cheers! :)
              – Nayeemul Islam Swad
              Dec 28 '18 at 15:58











              0














              You can use closures to keep track of the value in the input and then check the updated values against the elements own min and max attributes. Something like below:






              function ticker(initVal, el, max, min) {
              var currentValue = initVal;
              return function(n) {
              if (currentValue == n) {
              if (n == max) {
              el.value = min;
              } else if (n == min) {
              el.value = max;
              }
              }
              currentValue = n;
              }
              }

              var target = document.querySelector('#myNumber');
              var updateEl = ticker(target.value, target, target.max, target.min);
              document.querySelector('#myNumber').addEventListener('click', (e) => updateEl(e.target.value));

              <input type="number" id="myNumber" value="1" max="5" min="1">








              share|improve this answer


























                0














                You can use closures to keep track of the value in the input and then check the updated values against the elements own min and max attributes. Something like below:






                function ticker(initVal, el, max, min) {
                var currentValue = initVal;
                return function(n) {
                if (currentValue == n) {
                if (n == max) {
                el.value = min;
                } else if (n == min) {
                el.value = max;
                }
                }
                currentValue = n;
                }
                }

                var target = document.querySelector('#myNumber');
                var updateEl = ticker(target.value, target, target.max, target.min);
                document.querySelector('#myNumber').addEventListener('click', (e) => updateEl(e.target.value));

                <input type="number" id="myNumber" value="1" max="5" min="1">








                share|improve this answer
























                  0












                  0








                  0






                  You can use closures to keep track of the value in the input and then check the updated values against the elements own min and max attributes. Something like below:






                  function ticker(initVal, el, max, min) {
                  var currentValue = initVal;
                  return function(n) {
                  if (currentValue == n) {
                  if (n == max) {
                  el.value = min;
                  } else if (n == min) {
                  el.value = max;
                  }
                  }
                  currentValue = n;
                  }
                  }

                  var target = document.querySelector('#myNumber');
                  var updateEl = ticker(target.value, target, target.max, target.min);
                  document.querySelector('#myNumber').addEventListener('click', (e) => updateEl(e.target.value));

                  <input type="number" id="myNumber" value="1" max="5" min="1">








                  share|improve this answer












                  You can use closures to keep track of the value in the input and then check the updated values against the elements own min and max attributes. Something like below:






                  function ticker(initVal, el, max, min) {
                  var currentValue = initVal;
                  return function(n) {
                  if (currentValue == n) {
                  if (n == max) {
                  el.value = min;
                  } else if (n == min) {
                  el.value = max;
                  }
                  }
                  currentValue = n;
                  }
                  }

                  var target = document.querySelector('#myNumber');
                  var updateEl = ticker(target.value, target, target.max, target.min);
                  document.querySelector('#myNumber').addEventListener('click', (e) => updateEl(e.target.value));

                  <input type="number" id="myNumber" value="1" max="5" min="1">








                  function ticker(initVal, el, max, min) {
                  var currentValue = initVal;
                  return function(n) {
                  if (currentValue == n) {
                  if (n == max) {
                  el.value = min;
                  } else if (n == min) {
                  el.value = max;
                  }
                  }
                  currentValue = n;
                  }
                  }

                  var target = document.querySelector('#myNumber');
                  var updateEl = ticker(target.value, target, target.max, target.min);
                  document.querySelector('#myNumber').addEventListener('click', (e) => updateEl(e.target.value));

                  <input type="number" id="myNumber" value="1" max="5" min="1">





                  function ticker(initVal, el, max, min) {
                  var currentValue = initVal;
                  return function(n) {
                  if (currentValue == n) {
                  if (n == max) {
                  el.value = min;
                  } else if (n == min) {
                  el.value = max;
                  }
                  }
                  currentValue = n;
                  }
                  }

                  var target = document.querySelector('#myNumber');
                  var updateEl = ticker(target.value, target, target.max, target.min);
                  document.querySelector('#myNumber').addEventListener('click', (e) => updateEl(e.target.value));

                  <input type="number" id="myNumber" value="1" max="5" min="1">






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Dec 27 '18 at 18:58









                  Tom O.

                  2,15411325




                  2,15411325






























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