undefined-is-not-an-object-evaluating-this-state-datasource.map












-4















componentDidMount(){
fetch('https://boboboi.online/c_api_sales/get_dest',{
method: 'POST',
headers: {
Accept: 'application/json',
'Content-Type': 'application/json',
},
body: JSON.stringify({
port_code: 'CP-002',
api_key: 'ae9a6ce9a7479038d998060ef6d65ca9f86a13ed962a5366b3b0662cc52dde1b',
token: 'a959190d43520f8017ed2ca09ffc61bb'
}),
})

.then((response) => response.json())
.then((responseJson) => {
this.setState({
isLoading: false,
dataSource: responseJson
}, function() {
// In this block you can do something with new state.
});
})
.catch((error) => {
console.error(error);
});
}



    GetPickerSelectedItemValue=()=>{

Alert.alert(this.state.PickerValueHolder);

}


VIEW
enter image description here










share|improve this question

























  • Hi, welcome :) Few things to remember, Please never post your code as a screenshot, and secondly please provide full details of your question and what you asking. the way you wrote your question, no will be able to help you - See here stackoverflow.com/help/how-to-ask

    – Ali
    Jan 3 at 4:21
















-4















componentDidMount(){
fetch('https://boboboi.online/c_api_sales/get_dest',{
method: 'POST',
headers: {
Accept: 'application/json',
'Content-Type': 'application/json',
},
body: JSON.stringify({
port_code: 'CP-002',
api_key: 'ae9a6ce9a7479038d998060ef6d65ca9f86a13ed962a5366b3b0662cc52dde1b',
token: 'a959190d43520f8017ed2ca09ffc61bb'
}),
})

.then((response) => response.json())
.then((responseJson) => {
this.setState({
isLoading: false,
dataSource: responseJson
}, function() {
// In this block you can do something with new state.
});
})
.catch((error) => {
console.error(error);
});
}



    GetPickerSelectedItemValue=()=>{

Alert.alert(this.state.PickerValueHolder);

}


VIEW
enter image description here










share|improve this question

























  • Hi, welcome :) Few things to remember, Please never post your code as a screenshot, and secondly please provide full details of your question and what you asking. the way you wrote your question, no will be able to help you - See here stackoverflow.com/help/how-to-ask

    – Ali
    Jan 3 at 4:21














-4












-4








-4








componentDidMount(){
fetch('https://boboboi.online/c_api_sales/get_dest',{
method: 'POST',
headers: {
Accept: 'application/json',
'Content-Type': 'application/json',
},
body: JSON.stringify({
port_code: 'CP-002',
api_key: 'ae9a6ce9a7479038d998060ef6d65ca9f86a13ed962a5366b3b0662cc52dde1b',
token: 'a959190d43520f8017ed2ca09ffc61bb'
}),
})

.then((response) => response.json())
.then((responseJson) => {
this.setState({
isLoading: false,
dataSource: responseJson
}, function() {
// In this block you can do something with new state.
});
})
.catch((error) => {
console.error(error);
});
}



    GetPickerSelectedItemValue=()=>{

Alert.alert(this.state.PickerValueHolder);

}


VIEW
enter image description here










share|improve this question
















componentDidMount(){
fetch('https://boboboi.online/c_api_sales/get_dest',{
method: 'POST',
headers: {
Accept: 'application/json',
'Content-Type': 'application/json',
},
body: JSON.stringify({
port_code: 'CP-002',
api_key: 'ae9a6ce9a7479038d998060ef6d65ca9f86a13ed962a5366b3b0662cc52dde1b',
token: 'a959190d43520f8017ed2ca09ffc61bb'
}),
})

.then((response) => response.json())
.then((responseJson) => {
this.setState({
isLoading: false,
dataSource: responseJson
}, function() {
// In this block you can do something with new state.
});
})
.catch((error) => {
console.error(error);
});
}



    GetPickerSelectedItemValue=()=>{

Alert.alert(this.state.PickerValueHolder);

}


VIEW
enter image description here







javascript react-native






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 3 at 4:14







Chaidarabimanyuu

















asked Jan 3 at 4:08









ChaidarabimanyuuChaidarabimanyuu

12




12













  • Hi, welcome :) Few things to remember, Please never post your code as a screenshot, and secondly please provide full details of your question and what you asking. the way you wrote your question, no will be able to help you - See here stackoverflow.com/help/how-to-ask

    – Ali
    Jan 3 at 4:21



















  • Hi, welcome :) Few things to remember, Please never post your code as a screenshot, and secondly please provide full details of your question and what you asking. the way you wrote your question, no will be able to help you - See here stackoverflow.com/help/how-to-ask

    – Ali
    Jan 3 at 4:21

















Hi, welcome :) Few things to remember, Please never post your code as a screenshot, and secondly please provide full details of your question and what you asking. the way you wrote your question, no will be able to help you - See here stackoverflow.com/help/how-to-ask

– Ali
Jan 3 at 4:21





Hi, welcome :) Few things to remember, Please never post your code as a screenshot, and secondly please provide full details of your question and what you asking. the way you wrote your question, no will be able to help you - See here stackoverflow.com/help/how-to-ask

– Ali
Jan 3 at 4:21












1 Answer
1






active

oldest

votes


















0














map() method can be used with array and not with object. So if you want to use map method you can try using it like Object.keys(this.state.dataSource).map((key, index)=> { //your function and logic });






share|improve this answer
























  • like what ? do you have an example or recommended site for me to lear ? thankyou

    – Chaidarabimanyuu
    Jan 4 at 5:32











  • for your code you can try doing this. Object.keys(this.state.dataSource).map((key, index) => { console.log(this.state.dataSource[key]); }); this will list out all the values from your json object. checkout this link developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…

    – ekta patel
    Jan 7 at 5:24













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1 Answer
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1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














map() method can be used with array and not with object. So if you want to use map method you can try using it like Object.keys(this.state.dataSource).map((key, index)=> { //your function and logic });






share|improve this answer
























  • like what ? do you have an example or recommended site for me to lear ? thankyou

    – Chaidarabimanyuu
    Jan 4 at 5:32











  • for your code you can try doing this. Object.keys(this.state.dataSource).map((key, index) => { console.log(this.state.dataSource[key]); }); this will list out all the values from your json object. checkout this link developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…

    – ekta patel
    Jan 7 at 5:24


















0














map() method can be used with array and not with object. So if you want to use map method you can try using it like Object.keys(this.state.dataSource).map((key, index)=> { //your function and logic });






share|improve this answer
























  • like what ? do you have an example or recommended site for me to lear ? thankyou

    – Chaidarabimanyuu
    Jan 4 at 5:32











  • for your code you can try doing this. Object.keys(this.state.dataSource).map((key, index) => { console.log(this.state.dataSource[key]); }); this will list out all the values from your json object. checkout this link developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…

    – ekta patel
    Jan 7 at 5:24
















0












0








0







map() method can be used with array and not with object. So if you want to use map method you can try using it like Object.keys(this.state.dataSource).map((key, index)=> { //your function and logic });






share|improve this answer













map() method can be used with array and not with object. So if you want to use map method you can try using it like Object.keys(this.state.dataSource).map((key, index)=> { //your function and logic });







share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 3 at 6:19









ekta patelekta patel

1012




1012













  • like what ? do you have an example or recommended site for me to lear ? thankyou

    – Chaidarabimanyuu
    Jan 4 at 5:32











  • for your code you can try doing this. Object.keys(this.state.dataSource).map((key, index) => { console.log(this.state.dataSource[key]); }); this will list out all the values from your json object. checkout this link developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…

    – ekta patel
    Jan 7 at 5:24





















  • like what ? do you have an example or recommended site for me to lear ? thankyou

    – Chaidarabimanyuu
    Jan 4 at 5:32











  • for your code you can try doing this. Object.keys(this.state.dataSource).map((key, index) => { console.log(this.state.dataSource[key]); }); this will list out all the values from your json object. checkout this link developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…

    – ekta patel
    Jan 7 at 5:24



















like what ? do you have an example or recommended site for me to lear ? thankyou

– Chaidarabimanyuu
Jan 4 at 5:32





like what ? do you have an example or recommended site for me to lear ? thankyou

– Chaidarabimanyuu
Jan 4 at 5:32













for your code you can try doing this. Object.keys(this.state.dataSource).map((key, index) => { console.log(this.state.dataSource[key]); }); this will list out all the values from your json object. checkout this link developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…

– ekta patel
Jan 7 at 5:24







for your code you can try doing this. Object.keys(this.state.dataSource).map((key, index) => { console.log(this.state.dataSource[key]); }); this will list out all the values from your json object. checkout this link developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…

– ekta patel
Jan 7 at 5:24






















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