Determine Array include value in Another Array
0
I want to check if arr1 include arr2
i have try use .some and includes but it not return the right answer for me
arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19},{Name:'Steve',Age:'21'}]
arr2=[{Name:'John',Age:18},{Name:'Hana',Age:19},{Name:'Josh',Age:20}]
my expected
arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19},{Name:'Steve',Age:'21'},{Name:'Hana',Age:19},{Name:'Josh',Age:20}]
javascript
asked Jan 2 at 17:25
Phạm Minh TânPhạm Minh Tân
295
add a comment |
0
I want to check if arr1 include arr2
i have try use .some and includes but it not return the right answer for me
arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19},{Name:'Steve',Age:'21'}]
arr2=[{Name:'John',Age:18},{Name:'Hana',Age:19},{Name:'Josh',Age:20}]
my expected
arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19},{Name:'Steve',Age:'21'},{Name:'Hana',Age:19},{Name:'Josh',Age:20}]
javascript
asked Jan 2 at 17:25
Phạm Minh TânPhạm Minh Tân
295
Seems like you're looking for someone to write the code for you. It'll be better if you post any solutions you've tried since SO is not for people to write the code for you.
– Baruch
Jan 2 at 17:29
So which one is it? You want the output to be just atrueorfalseOR you want to merge the arrays?
– adiga
Jan 2 at 17:36
please add the wanted result as well.
– Nina Scholz
Jan 2 at 17:39
i have updated , so sorry
– Phạm Minh Tân
Jan 2 at 17:56
add a comment |
0
0
0
I want to check if arr1 include arr2
i have try use .some and includes but it not return the right answer for me
arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19},{Name:'Steve',Age:'21'}]
arr2=[{Name:'John',Age:18},{Name:'Hana',Age:19},{Name:'Josh',Age:20}]
my expected
arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19},{Name:'Steve',Age:'21'},{Name:'Hana',Age:19},{Name:'Josh',Age:20}]
javascript
asked Jan 2 at 17:25
Phạm Minh TânPhạm Minh Tân
295
I want to check if arr1 include arr2
i have try use .some and includes but it not return the right answer for me
arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19},{Name:'Steve',Age:'21'}]
arr2=[{Name:'John',Age:18},{Name:'Hana',Age:19},{Name:'Josh',Age:20}]
my expected
arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19},{Name:'Steve',Age:'21'},{Name:'Hana',Age:19},{Name:'Josh',Age:20}]
javascript
javascript
asked Jan 2 at 17:25
Phạm Minh TânPhạm Minh Tân
295
asked Jan 2 at 17:25
Phạm Minh TânPhạm Minh Tân
295
edited Jan 2 at 17:56
Phạm Minh Tân
asked Jan 2 at 17:25
Phạm Minh TânPhạm Minh Tân
295
asked Jan 2 at 17:25
Phạm Minh TânPhạm Minh Tân
295
asked Jan 2 at 17:25
Phạm Minh TânPhạm Minh Tân
295
295
Seems like you're looking for someone to write the code for you. It'll be better if you post any solutions you've tried since SO is not for people to write the code for you.
– Baruch
Jan 2 at 17:29
So which one is it? You want the output to be just atrueorfalseOR you want to merge the arrays?
– adiga
Jan 2 at 17:36
please add the wanted result as well.
– Nina Scholz
Jan 2 at 17:39
i have updated , so sorry
– Phạm Minh Tân
Jan 2 at 17:56
add a comment |
Seems like you're looking for someone to write the code for you. It'll be better if you post any solutions you've tried since SO is not for people to write the code for you.
– Baruch
Jan 2 at 17:29
So which one is it? You want the output to be just atrueorfalseOR you want to merge the arrays?
– adiga
Jan 2 at 17:36
please add the wanted result as well.
– Nina Scholz
Jan 2 at 17:39
i have updated , so sorry
– Phạm Minh Tân
Jan 2 at 17:56
Seems like you're looking for someone to write the code for you. It'll be better if you post any solutions you've tried since SO is not for people to write the code for you.
– Baruch
Jan 2 at 17:29
Seems like you're looking for someone to write the code for you. It'll be better if you post any solutions you've tried since SO is not for people to write the code for you.
– Baruch
Jan 2 at 17:29
So which one is it? You want the output to be just a
true or false OR you want to merge the arrays?– adiga
Jan 2 at 17:36
So which one is it? You want the output to be just a
true or false OR you want to merge the arrays?– adiga
Jan 2 at 17:36
please add the wanted result as well.
– Nina Scholz
Jan 2 at 17:39
please add the wanted result as well.
– Nina Scholz
Jan 2 at 17:39
i have updated , so sorry
– Phạm Minh Tân
Jan 2 at 17:56
i have updated , so sorry
– Phạm Minh Tân
Jan 2 at 17:56
add a comment |
3 Answers
3
active
oldest
votes
0
You can use array#every with array#some. Iterate through each object in arr2 and check if the object exist in arr1.
let arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19}],
arr2=[{Name:'John',Age:18}],
result = arr2.every(({Name, Age}) => {
return arr1.some(o => o.Name === Name && o.Age === Age);
});
console.log(result);answered Jan 2 at 17:29
Hassan ImamHassan Imam
11.9k31532
add a comment |
0
Since they are not the same object just objects with same values you have to compare each value.
const arr1 = [{
Name: 'John',
Age: 18
}, {
Name: 'Leona',
Age: 19
}];
const arr2 = [{
Name: 'John',
Age: 18
}];
const check = arr1.some(e1 => arr2.some(e2 => e1.Name === e2.Name && e1.Age === e2.Age));
console.log(check);answered Jan 2 at 17:31
Sebastian SpeitelSebastian Speitel
4,5882727
add a comment |
0
You could reduce the first array and check if Name is not in the first array, then add it to the result set.
var array1 = [{ Name: 'John', Age: 18 }, { Name: 'Leona', Age: 19 }, { Name: 'Steve', Age: '21' }],
array2 = [{ Name: 'John', Age: 18 }, { Name: 'Hana', Age: 19 }, { Name: 'Josh', Age: 20 }];
array2.reduce((r, o) => {
if (!r.some(({ Name }) => o.Name === Name)) r.push(o);
return r;
}, array1);
console.log(array1);.as-console-wrapper { max-height: 100% !important; top: 0; }answered Jan 2 at 21:55
Nina ScholzNina Scholz
191k15103175
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
You can use array#every with array#some. Iterate through each object in arr2 and check if the object exist in arr1.
let arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19}],
arr2=[{Name:'John',Age:18}],
result = arr2.every(({Name, Age}) => {
return arr1.some(o => o.Name === Name && o.Age === Age);
});
console.log(result);answered Jan 2 at 17:29
Hassan ImamHassan Imam
11.9k31532
add a comment |
0
You can use array#every with array#some. Iterate through each object in arr2 and check if the object exist in arr1.
let arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19}],
arr2=[{Name:'John',Age:18}],
result = arr2.every(({Name, Age}) => {
return arr1.some(o => o.Name === Name && o.Age === Age);
});
console.log(result);answered Jan 2 at 17:29
Hassan ImamHassan Imam
11.9k31532
add a comment |
0
0
0
You can use array#every with array#some. Iterate through each object in arr2 and check if the object exist in arr1.
let arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19}],
arr2=[{Name:'John',Age:18}],
result = arr2.every(({Name, Age}) => {
return arr1.some(o => o.Name === Name && o.Age === Age);
});
console.log(result);answered Jan 2 at 17:29
Hassan ImamHassan Imam
11.9k31532
You can use array#every with array#some. Iterate through each object in arr2 and check if the object exist in arr1.
let arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19}],
arr2=[{Name:'John',Age:18}],
result = arr2.every(({Name, Age}) => {
return arr1.some(o => o.Name === Name && o.Age === Age);
});
console.log(result);let arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19}],
arr2=[{Name:'John',Age:18}],
result = arr2.every(({Name, Age}) => {
return arr1.some(o => o.Name === Name && o.Age === Age);
});
console.log(result);let arr1=[{Name:'John',Age:18},{Name:'Leona',Age:19}],
arr2=[{Name:'John',Age:18}],
result = arr2.every(({Name, Age}) => {
return arr1.some(o => o.Name === Name && o.Age === Age);
});
console.log(result);answered Jan 2 at 17:29
Hassan ImamHassan Imam
11.9k31532
answered Jan 2 at 17:29
Hassan ImamHassan Imam
11.9k31532
answered Jan 2 at 17:29
Hassan ImamHassan Imam
11.9k31532
answered Jan 2 at 17:29
Hassan ImamHassan Imam
11.9k31532
11.9k31532
add a comment |
add a comment |
0
Since they are not the same object just objects with same values you have to compare each value.
const arr1 = [{
Name: 'John',
Age: 18
}, {
Name: 'Leona',
Age: 19
}];
const arr2 = [{
Name: 'John',
Age: 18
}];
const check = arr1.some(e1 => arr2.some(e2 => e1.Name === e2.Name && e1.Age === e2.Age));
console.log(check);answered Jan 2 at 17:31
Sebastian SpeitelSebastian Speitel
4,5882727
add a comment |
0
Since they are not the same object just objects with same values you have to compare each value.
const arr1 = [{
Name: 'John',
Age: 18
}, {
Name: 'Leona',
Age: 19
}];
const arr2 = [{
Name: 'John',
Age: 18
}];
const check = arr1.some(e1 => arr2.some(e2 => e1.Name === e2.Name && e1.Age === e2.Age));
console.log(check);answered Jan 2 at 17:31
Sebastian SpeitelSebastian Speitel
4,5882727
add a comment |
0
0
0
Since they are not the same object just objects with same values you have to compare each value.
const arr1 = [{
Name: 'John',
Age: 18
}, {
Name: 'Leona',
Age: 19
}];
const arr2 = [{
Name: 'John',
Age: 18
}];
const check = arr1.some(e1 => arr2.some(e2 => e1.Name === e2.Name && e1.Age === e2.Age));
console.log(check);answered Jan 2 at 17:31
Sebastian SpeitelSebastian Speitel
4,5882727
Since they are not the same object just objects with same values you have to compare each value.
const arr1 = [{
Name: 'John',
Age: 18
}, {
Name: 'Leona',
Age: 19
}];
const arr2 = [{
Name: 'John',
Age: 18
}];
const check = arr1.some(e1 => arr2.some(e2 => e1.Name === e2.Name && e1.Age === e2.Age));
console.log(check);const arr1 = [{
Name: 'John',
Age: 18
}, {
Name: 'Leona',
Age: 19
}];
const arr2 = [{
Name: 'John',
Age: 18
}];
const check = arr1.some(e1 => arr2.some(e2 => e1.Name === e2.Name && e1.Age === e2.Age));
console.log(check);const arr1 = [{
Name: 'John',
Age: 18
}, {
Name: 'Leona',
Age: 19
}];
const arr2 = [{
Name: 'John',
Age: 18
}];
const check = arr1.some(e1 => arr2.some(e2 => e1.Name === e2.Name && e1.Age === e2.Age));
console.log(check);answered Jan 2 at 17:31
Sebastian SpeitelSebastian Speitel
4,5882727
answered Jan 2 at 17:31
Sebastian SpeitelSebastian Speitel
4,5882727
answered Jan 2 at 17:31
Sebastian SpeitelSebastian Speitel
4,5882727
answered Jan 2 at 17:31
Sebastian SpeitelSebastian Speitel
4,5882727
4,5882727
add a comment |
add a comment |
0
You could reduce the first array and check if Name is not in the first array, then add it to the result set.
var array1 = [{ Name: 'John', Age: 18 }, { Name: 'Leona', Age: 19 }, { Name: 'Steve', Age: '21' }],
array2 = [{ Name: 'John', Age: 18 }, { Name: 'Hana', Age: 19 }, { Name: 'Josh', Age: 20 }];
array2.reduce((r, o) => {
if (!r.some(({ Name }) => o.Name === Name)) r.push(o);
return r;
}, array1);
console.log(array1);.as-console-wrapper { max-height: 100% !important; top: 0; }answered Jan 2 at 21:55
Nina ScholzNina Scholz
191k15103175
add a comment |
0
You could reduce the first array and check if Name is not in the first array, then add it to the result set.
var array1 = [{ Name: 'John', Age: 18 }, { Name: 'Leona', Age: 19 }, { Name: 'Steve', Age: '21' }],
array2 = [{ Name: 'John', Age: 18 }, { Name: 'Hana', Age: 19 }, { Name: 'Josh', Age: 20 }];
array2.reduce((r, o) => {
if (!r.some(({ Name }) => o.Name === Name)) r.push(o);
return r;
}, array1);
console.log(array1);.as-console-wrapper { max-height: 100% !important; top: 0; }answered Jan 2 at 21:55
Nina ScholzNina Scholz
191k15103175
add a comment |
0
0
0
You could reduce the first array and check if Name is not in the first array, then add it to the result set.
var array1 = [{ Name: 'John', Age: 18 }, { Name: 'Leona', Age: 19 }, { Name: 'Steve', Age: '21' }],
array2 = [{ Name: 'John', Age: 18 }, { Name: 'Hana', Age: 19 }, { Name: 'Josh', Age: 20 }];
array2.reduce((r, o) => {
if (!r.some(({ Name }) => o.Name === Name)) r.push(o);
return r;
}, array1);
console.log(array1);.as-console-wrapper { max-height: 100% !important; top: 0; }answered Jan 2 at 21:55
Nina ScholzNina Scholz
191k15103175
You could reduce the first array and check if Name is not in the first array, then add it to the result set.
var array1 = [{ Name: 'John', Age: 18 }, { Name: 'Leona', Age: 19 }, { Name: 'Steve', Age: '21' }],
array2 = [{ Name: 'John', Age: 18 }, { Name: 'Hana', Age: 19 }, { Name: 'Josh', Age: 20 }];
array2.reduce((r, o) => {
if (!r.some(({ Name }) => o.Name === Name)) r.push(o);
return r;
}, array1);
console.log(array1);.as-console-wrapper { max-height: 100% !important; top: 0; }var array1 = [{ Name: 'John', Age: 18 }, { Name: 'Leona', Age: 19 }, { Name: 'Steve', Age: '21' }],
array2 = [{ Name: 'John', Age: 18 }, { Name: 'Hana', Age: 19 }, { Name: 'Josh', Age: 20 }];
array2.reduce((r, o) => {
if (!r.some(({ Name }) => o.Name === Name)) r.push(o);
return r;
}, array1);
console.log(array1);.as-console-wrapper { max-height: 100% !important; top: 0; }var array1 = [{ Name: 'John', Age: 18 }, { Name: 'Leona', Age: 19 }, { Name: 'Steve', Age: '21' }],
array2 = [{ Name: 'John', Age: 18 }, { Name: 'Hana', Age: 19 }, { Name: 'Josh', Age: 20 }];
array2.reduce((r, o) => {
if (!r.some(({ Name }) => o.Name === Name)) r.push(o);
return r;
}, array1);
console.log(array1);.as-console-wrapper { max-height: 100% !important; top: 0; }answered Jan 2 at 21:55
Nina ScholzNina Scholz
191k15103175
answered Jan 2 at 21:55
Nina ScholzNina Scholz
191k15103175
answered Jan 2 at 21:55
Nina ScholzNina Scholz
191k15103175
answered Jan 2 at 21:55
Nina ScholzNina Scholz
191k15103175
191k15103175
add a comment |
add a comment |
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Seems like you're looking for someone to write the code for you. It'll be better if you post any solutions you've tried since SO is not for people to write the code for you.
– Baruch
Jan 2 at 17:29
So which one is it? You want the output to be just a
trueorfalseOR you want to merge the arrays?– adiga
Jan 2 at 17:36
please add the wanted result as well.
– Nina Scholz
Jan 2 at 17:39
i have updated , so sorry
– Phạm Minh Tân
Jan 2 at 17:56