Successful callback of $http is executing twice instead of once - Java script
I need to generate and print checkboxes based on JSON feed for books object. So far I tried the following. There are four objects in the datalist array. In HTML, four check boxes should be created for books. But instead eight checkboxes are getting created. Any help would be much appreciated.
JSON
[{
"books" : {
"contents" : [
{
"title" : "Book1",
"type" : "CHECKBOX"
},
{
"title" : "Book2",
"type" : "CHECKBOX"
},
{
"title" : "Book3",
"type" : "CHECKBOX",
},
{
"title" : "Book4",
"type" : "CHECKBOX",
}
]
}
"storybooks" : {
"contents" : [
{
"title" : "Book1",
"type" : "CHECKBOX"
},
{
"title" : "Book2",
"type" : "CHECKBOX"
},
{
"title" : "Book3",
"type" : "CHECKBOX",
},
{
"title" : "Book4",
"type" : "CHECKBOX",
}
]
}
}]
app.js
var datalist = ;
$http({
method: 'GET',
url: 'json.json'
})
.then(function successCallback(data) {
$scope.data = data.data;
datalist = $scope.data;
for (var i = 0; i < datalist.length; i ++) {
console.log(datalist[i]);
}
$scope.data.map(function (item) {
item.content = item.book.contents;
datalist = item.content;
datalist.forEach((c, index) => {
var btn = document.createElement('input');
btn.type = 'checkbox';
document.getElementById('mydiv').appendChild(btn);
});
});
}, function errorCallback(response) {
console.log(response);
console.log('error');
});
HTML
<div id="mydiv">
</div>
javascript arrays json http callback
add a comment |
I need to generate and print checkboxes based on JSON feed for books object. So far I tried the following. There are four objects in the datalist array. In HTML, four check boxes should be created for books. But instead eight checkboxes are getting created. Any help would be much appreciated.
JSON
[{
"books" : {
"contents" : [
{
"title" : "Book1",
"type" : "CHECKBOX"
},
{
"title" : "Book2",
"type" : "CHECKBOX"
},
{
"title" : "Book3",
"type" : "CHECKBOX",
},
{
"title" : "Book4",
"type" : "CHECKBOX",
}
]
}
"storybooks" : {
"contents" : [
{
"title" : "Book1",
"type" : "CHECKBOX"
},
{
"title" : "Book2",
"type" : "CHECKBOX"
},
{
"title" : "Book3",
"type" : "CHECKBOX",
},
{
"title" : "Book4",
"type" : "CHECKBOX",
}
]
}
}]
app.js
var datalist = ;
$http({
method: 'GET',
url: 'json.json'
})
.then(function successCallback(data) {
$scope.data = data.data;
datalist = $scope.data;
for (var i = 0; i < datalist.length; i ++) {
console.log(datalist[i]);
}
$scope.data.map(function (item) {
item.content = item.book.contents;
datalist = item.content;
datalist.forEach((c, index) => {
var btn = document.createElement('input');
btn.type = 'checkbox';
document.getElementById('mydiv').appendChild(btn);
});
});
}, function errorCallback(response) {
console.log(response);
console.log('error');
});
HTML
<div id="mydiv">
</div>
javascript arrays json http callback
can you make a code snippet?
– Santosh
Nov 16 '18 at 11:02
add a comment |
I need to generate and print checkboxes based on JSON feed for books object. So far I tried the following. There are four objects in the datalist array. In HTML, four check boxes should be created for books. But instead eight checkboxes are getting created. Any help would be much appreciated.
JSON
[{
"books" : {
"contents" : [
{
"title" : "Book1",
"type" : "CHECKBOX"
},
{
"title" : "Book2",
"type" : "CHECKBOX"
},
{
"title" : "Book3",
"type" : "CHECKBOX",
},
{
"title" : "Book4",
"type" : "CHECKBOX",
}
]
}
"storybooks" : {
"contents" : [
{
"title" : "Book1",
"type" : "CHECKBOX"
},
{
"title" : "Book2",
"type" : "CHECKBOX"
},
{
"title" : "Book3",
"type" : "CHECKBOX",
},
{
"title" : "Book4",
"type" : "CHECKBOX",
}
]
}
}]
app.js
var datalist = ;
$http({
method: 'GET',
url: 'json.json'
})
.then(function successCallback(data) {
$scope.data = data.data;
datalist = $scope.data;
for (var i = 0; i < datalist.length; i ++) {
console.log(datalist[i]);
}
$scope.data.map(function (item) {
item.content = item.book.contents;
datalist = item.content;
datalist.forEach((c, index) => {
var btn = document.createElement('input');
btn.type = 'checkbox';
document.getElementById('mydiv').appendChild(btn);
});
});
}, function errorCallback(response) {
console.log(response);
console.log('error');
});
HTML
<div id="mydiv">
</div>
javascript arrays json http callback
I need to generate and print checkboxes based on JSON feed for books object. So far I tried the following. There are four objects in the datalist array. In HTML, four check boxes should be created for books. But instead eight checkboxes are getting created. Any help would be much appreciated.
JSON
[{
"books" : {
"contents" : [
{
"title" : "Book1",
"type" : "CHECKBOX"
},
{
"title" : "Book2",
"type" : "CHECKBOX"
},
{
"title" : "Book3",
"type" : "CHECKBOX",
},
{
"title" : "Book4",
"type" : "CHECKBOX",
}
]
}
"storybooks" : {
"contents" : [
{
"title" : "Book1",
"type" : "CHECKBOX"
},
{
"title" : "Book2",
"type" : "CHECKBOX"
},
{
"title" : "Book3",
"type" : "CHECKBOX",
},
{
"title" : "Book4",
"type" : "CHECKBOX",
}
]
}
}]
app.js
var datalist = ;
$http({
method: 'GET',
url: 'json.json'
})
.then(function successCallback(data) {
$scope.data = data.data;
datalist = $scope.data;
for (var i = 0; i < datalist.length; i ++) {
console.log(datalist[i]);
}
$scope.data.map(function (item) {
item.content = item.book.contents;
datalist = item.content;
datalist.forEach((c, index) => {
var btn = document.createElement('input');
btn.type = 'checkbox';
document.getElementById('mydiv').appendChild(btn);
});
});
}, function errorCallback(response) {
console.log(response);
console.log('error');
});
HTML
<div id="mydiv">
</div>
javascript arrays json http callback
javascript arrays json http callback
edited Nov 16 '18 at 9:32
Mishty
asked Nov 16 '18 at 7:09
MishtyMishty
417
417
can you make a code snippet?
– Santosh
Nov 16 '18 at 11:02
add a comment |
can you make a code snippet?
– Santosh
Nov 16 '18 at 11:02
can you make a code snippet?
– Santosh
Nov 16 '18 at 11:02
can you make a code snippet?
– Santosh
Nov 16 '18 at 11:02
add a comment |
2 Answers
2
active
oldest
votes
I think you were accessing the data incorrectly.
Here is a simplified version:
$http({
method: 'GET',
url: 'json.json'
})
.then(data => {
const myDiv = document.getElementById('mydiv')
data.books.contents.forEach(b => {
const btn = document.createElement('input')
btn.type = 'checkbox'
myDiv.appendChild(btn)
})
})
.catch(err => {
console.log('error', err)
})
Actually JSON has two objects namely books and storybooks. Edited the question with storybooks
– Mishty
Nov 16 '18 at 12:10
Should be fine if you only use books. Edited a bit
– Ty Kroll
Nov 17 '18 at 1:50
add a comment |
Improvised @Try Kroll's suggestion
var count = 0;
http({
method: 'GET',
url: 'json.json'
})
.then(data => {
if(count==0){
const myDiv = document.getElementById('myDiv')
data.data.books.contents.forEach(b => {
const btn = document.createElement('input')
btn.type = 'checkbox'
perhiscontainer.appendChild(btn)
})
count = count+1;
}
})
.catch(err => {
console.log('error', err)
})
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
I think you were accessing the data incorrectly.
Here is a simplified version:
$http({
method: 'GET',
url: 'json.json'
})
.then(data => {
const myDiv = document.getElementById('mydiv')
data.books.contents.forEach(b => {
const btn = document.createElement('input')
btn.type = 'checkbox'
myDiv.appendChild(btn)
})
})
.catch(err => {
console.log('error', err)
})
Actually JSON has two objects namely books and storybooks. Edited the question with storybooks
– Mishty
Nov 16 '18 at 12:10
Should be fine if you only use books. Edited a bit
– Ty Kroll
Nov 17 '18 at 1:50
add a comment |
I think you were accessing the data incorrectly.
Here is a simplified version:
$http({
method: 'GET',
url: 'json.json'
})
.then(data => {
const myDiv = document.getElementById('mydiv')
data.books.contents.forEach(b => {
const btn = document.createElement('input')
btn.type = 'checkbox'
myDiv.appendChild(btn)
})
})
.catch(err => {
console.log('error', err)
})
Actually JSON has two objects namely books and storybooks. Edited the question with storybooks
– Mishty
Nov 16 '18 at 12:10
Should be fine if you only use books. Edited a bit
– Ty Kroll
Nov 17 '18 at 1:50
add a comment |
I think you were accessing the data incorrectly.
Here is a simplified version:
$http({
method: 'GET',
url: 'json.json'
})
.then(data => {
const myDiv = document.getElementById('mydiv')
data.books.contents.forEach(b => {
const btn = document.createElement('input')
btn.type = 'checkbox'
myDiv.appendChild(btn)
})
})
.catch(err => {
console.log('error', err)
})
I think you were accessing the data incorrectly.
Here is a simplified version:
$http({
method: 'GET',
url: 'json.json'
})
.then(data => {
const myDiv = document.getElementById('mydiv')
data.books.contents.forEach(b => {
const btn = document.createElement('input')
btn.type = 'checkbox'
myDiv.appendChild(btn)
})
})
.catch(err => {
console.log('error', err)
})
edited Nov 17 '18 at 1:52
answered Nov 16 '18 at 7:59
Ty KrollTy Kroll
1,039822
1,039822
Actually JSON has two objects namely books and storybooks. Edited the question with storybooks
– Mishty
Nov 16 '18 at 12:10
Should be fine if you only use books. Edited a bit
– Ty Kroll
Nov 17 '18 at 1:50
add a comment |
Actually JSON has two objects namely books and storybooks. Edited the question with storybooks
– Mishty
Nov 16 '18 at 12:10
Should be fine if you only use books. Edited a bit
– Ty Kroll
Nov 17 '18 at 1:50
Actually JSON has two objects namely books and storybooks. Edited the question with storybooks
– Mishty
Nov 16 '18 at 12:10
Actually JSON has two objects namely books and storybooks. Edited the question with storybooks
– Mishty
Nov 16 '18 at 12:10
Should be fine if you only use books. Edited a bit
– Ty Kroll
Nov 17 '18 at 1:50
Should be fine if you only use books. Edited a bit
– Ty Kroll
Nov 17 '18 at 1:50
add a comment |
Improvised @Try Kroll's suggestion
var count = 0;
http({
method: 'GET',
url: 'json.json'
})
.then(data => {
if(count==0){
const myDiv = document.getElementById('myDiv')
data.data.books.contents.forEach(b => {
const btn = document.createElement('input')
btn.type = 'checkbox'
perhiscontainer.appendChild(btn)
})
count = count+1;
}
})
.catch(err => {
console.log('error', err)
})
add a comment |
Improvised @Try Kroll's suggestion
var count = 0;
http({
method: 'GET',
url: 'json.json'
})
.then(data => {
if(count==0){
const myDiv = document.getElementById('myDiv')
data.data.books.contents.forEach(b => {
const btn = document.createElement('input')
btn.type = 'checkbox'
perhiscontainer.appendChild(btn)
})
count = count+1;
}
})
.catch(err => {
console.log('error', err)
})
add a comment |
Improvised @Try Kroll's suggestion
var count = 0;
http({
method: 'GET',
url: 'json.json'
})
.then(data => {
if(count==0){
const myDiv = document.getElementById('myDiv')
data.data.books.contents.forEach(b => {
const btn = document.createElement('input')
btn.type = 'checkbox'
perhiscontainer.appendChild(btn)
})
count = count+1;
}
})
.catch(err => {
console.log('error', err)
})
Improvised @Try Kroll's suggestion
var count = 0;
http({
method: 'GET',
url: 'json.json'
})
.then(data => {
if(count==0){
const myDiv = document.getElementById('myDiv')
data.data.books.contents.forEach(b => {
const btn = document.createElement('input')
btn.type = 'checkbox'
perhiscontainer.appendChild(btn)
})
count = count+1;
}
})
.catch(err => {
console.log('error', err)
})
answered Nov 17 '18 at 6:32
MishtyMishty
417
417
add a comment |
add a comment |
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can you make a code snippet?
– Santosh
Nov 16 '18 at 11:02