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

Multi tool use
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
add a comment |
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
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
add a comment |
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
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
javascript react-native
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
add a comment |
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
add a comment |
1 Answer
1
active
oldest
votes
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 });
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
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
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 });
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
add a comment |
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 });
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
add a comment |
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 });
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 });
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
add a comment |
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
add a comment |
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9CdGzeqmn7VrCU5 c,i,QtcWU7 Jv,tV1zvc4fp fG,1
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