Develop Reference

dynamically populate data in dropdown using javascript api using axois

it is a dropdown with top and other in the world
the cities and data will be dynamically populated in dropdown using javascript API using Axios
With external Apis.
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js"></script>
<select class="form-select" aria-label="Default select example">
<option selected>Open this select menu</option>
<option value="1">---Top Cities---</option>
<option value="2">Mumbai</option>
<option value="3">Delhi</option>
<option value="1">Bengaluru</option>
<option value="2">Chennai</option>
<option value="3">Kolkata</option>
<option value="2">---Other Cities---</option>
<option value="3">Bhavnagar</option>
<option value="3">Udaipur</option>
<option value="3">Pune</option>
</select>
[
{ "id": "1", "name": "Mumbai", "state": "Maharashtra" },
{ "id": "2", "name": "Delhi", "state": "Delhi" },
{ "id": "3", "name": "Bengaluru", "state": "Karnataka" },
{ "id": "4", "name": "Ahmedabad", "state": "Gujarat" },
{ "id": "5", "name": "Hyderabad", "state": "Telangana" },
{ "id": "6", "name": "Chennai", "state": "Tamil Nadu" },
{ "id": "7", "name": "Kolkata", "state": "West Bengal" }
]

let options = [
{ "id": "1", "name": "Mumbai", "state": "Maharashtra" },
{ "id": "2", "name": "Delhi", "state": "Delhi" },
{ "id": "3", "name": "Bengaluru", "state": "Karnataka" },
{ "id": "4", "name": "Ahmedabad", "state": "Gujarat" },
{ "id": "5", "name": "Hyderabad", "state": "Telangana" },
{ "id": "6", "name": "Chennai", "state": "Tamil Nadu" },
{ "id": "7", "name": "Kolkata", "state": "West Bengal" }
]
const select = document.querySelector(".form-select");
options.map(val=>{
let opt = document.createElement("option");
opt.innerText = val.name
select.appendChild(opt);
})
Just add this in your javascript file .

Create "OPTION" element
Set its value using setAttribute
Update that to the select element
const topCities = [
{ "id": "1", "name": "Mumbai", "state": "Maharashtra" },
{ "id": "2", "name": "Delhi", "state": "Delhi" },
{ "id": "3", "name": "Bengaluru", "state": "Karnataka" },
{ "id": "4", "name": "Ahmedabad", "state": "Gujarat" },
{ "id": "5", "name": "Hyderabad", "state": "Telangana" },
{ "id": "6", "name": "Chennai", "state": "Tamil Nadu" },
{ "id": "7", "name": "Kolkata", "state": "West Bengal" }
]
const otherCities = [
{ "id": "1", "name": "Bhavnagar", "state": "Bhavnagar" },
{ "id": "2", "name": "Udaipur", "state": "Udaipur" },
{ "id": "3", "name": "Pune", "state": "Pune" },
];
const select = document.querySelector('select');
function addOption(label, value) {
const option = document.createElement("OPTION");
option.setAttribute('value', value);
const text = document.createTextNode(label);
option.appendChild(text);
select.appendChild(option);
}
addOption("---Top Cities---", "1");
topCities.forEach((city) => {
addOption(city.name, city.id);
});
addOption("---Other Cities---", "2");
otherCities.forEach((city) => {
addOption(city.name, city.id);
});
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js"></script>
<select class="form-select" aria-label="Default select example">
<option selected>Open this select menu</option>
</select>

how to get matching objects in an array of objects?

This is my object. Inside the bun array I have 2 objects. I need to access only "oid": 1 and "bid": 1 object details. There is no need to access the second object.
{
"oid": "1",
"oname": "Fon",
"bun": [{
"bid": "1",
"bname": "Ets",
"dep": [{
"did": "1",
"dname": "Dptment",
"pids": [{
"pid": "1",
"st": "active"
}, {
"pid": "2",
"st": "active"
}]
}]
}, {
"bid": "2",
"bname": "US",
"description": "unit2",
"dep": []
}]
}
How it is possible?

One way to achieve is using filter.
let jsObj = {
"oid": "1",
"oname": "Fon",
"bun": [{
"bid": "1",
"bname": "Ets",
"dep": [{
"did": "1",
"dname": "Dptment",
"pids": [{
"pid": "1",
"st": "active"
}, {
"pid": "2",
"st": "active"
}]
}]
}, {
"bid": "2",
"bname": "US",
"description": "unit2",
"dep": []
}]
};
jsObj.bun.filter((b) => {
return b.bid == 1
});

How can a JSON call another JSON

I am developing a simple application with AngularJS and I want to get the value of the price dynamically so I want to make a JSON call to another JSON and I am not sure if is this possible !
This is my data.json:
[{
"name": "city A",
"elements": [{
"id": "c01",
"name": "name1",
"price": "15",
"qte": "10"
}, {
"id": "c02",
"name": "name2",
"price": "18",
"qte": "11"
}, {
"id": "c03",
"name": "name3",
"price": "11",
"qte": "14"
}],
"subsities": [{
"name": "sub A1",
"elements": [{
"id": "sub01",
"name": "nameSub1",
"price": "1",
"qte": "14"
}, {
"id": "sub02",
"name": "nameSub2",
"price": "8",
"qte": "13"
}, {
"id": "sub03",
"name": "nameSub3",
"price": "1",
"qte": "14"
}]
}, {
"name": "sub A2",
"elements": [{
"id": "ssub01",
"name": "nameSsub1",
"price": "1",
"qte": "7"
}, {
"id": "ssub02",
"name": "nameSsub2",
"price": "8",
"qte": "1"
}, {
"id": "ssub03",
"name": "nameSsub3",
"price": "4",
"qte": "19"
}]
}, {
"name": "sub A3",
"elements": [{
"id": "sssub01",
"name": "nameSssub1",
"price": "1",
"qte": "11"
}, {
"id": "sssub02",
"name": "nameSssub2",
"price": "2",
"qte": "15"
}, {
"id": "sssub03",
"name": "nameSssub3",
"price": "1",
"qte": "15"
}]
}]
}, {
"name": "city B",
"elements": [{
"id": "cc01",
"name": "name11",
"price": "10",
"qte": "11"
}, {
"id": "cc02",
"name": "name22",
"price": "14",
"qte": "19"
}, {
"id": "cc03",
"name": "name33",
"price": "11",
"qte": "18"
}]
}, {
"name": "city C",
"elements": [{
"id": "ccc01",
"name": "name111",
"price": "19",
"qte": "12"
}, {
"id": "ccc02",
"name": "name222",
"price": "18",
"qte": "17"
}, {
"id": "ccc03",
"name": "name333",
"price": "10",
"qte": "5"
}]
}]
And I want to get the value of price from this url : url json
I want to do something like :
[{
"name": "city A",
"elements": [{
"id": "c01",
"name": "name1",
"price": "prix_diesel",/*prix_diesel is an attribute in json url I want to extract its value here.*/
"qte": "10"
}, {
"id": "c02",
"name": "name2",
"price": "18",
"qte": "11"
}, {
"id": "c03",
"name": "name3",
"price": "11",
"qte": "14"
}],
"subsities": [{
"name": "sub A1",
"elements": [{
"id": "sub01",
"name": "nameSub1",
"price": "1",
"qte": "14"
}, {
"id": "sub02",
"name": "nameSub2",
"price": "8",
"qte": "13"
}, {
"id": "sub03",
"name": "nameSub3",
"price": "1",
"qte": "14"
}]
}, {
"name": "sub A2",
"elements": [{
"id": "ssub01",
"name": "nameSsub1",
"price": "1",
"qte": "7"
}, {
"id": "ssub02",
"name": "nameSsub2",
"price": "8",
"qte": "1"
}, {
"id": "ssub03",
"name": "nameSsub3",
"price": "4",
"qte": "19"
}]
}, {
"name": "sub A3",
"elements": [{
"id": "sssub01",
"name": "nameSssub1",
"price": "1",
"qte": "11"
}, {
"id": "sssub02",
"name": "nameSssub2",
"price": "2",
"qte": "15"
}, {
"id": "sssub03",
"name": "nameSssub3",
"price": "1",
"qte": "15"
}]
}]
}
......
......
]
I set this up in my plunkr : plunkr
I search and I found that if I want to get the data from the URL, I'll need an XMLHttpRequest (with Angular, I can use $http.get). But here I am using a JSON which call another JSON file so how can I resolve this problem ? do you have any idea please !

You can't. JSON is not a programming language but an open standard for data transfer.
What you can do however is reference an object from the second file in the first file. An example:
[{
"name": "city A",
"elements": [{
"id": "c01",
"name": "name1",
"price": "prix_diesel",
"qte": "10"
}]
// Simplified
}]
And the JSON from your URL:
{
"prix": {
"prix_diesel": "8.25",
"prix_essence": "10.14",
"prix_aditive": "8.80"
}
}
Now write a JS function which finds the reference in your first JSON file prix_diesel and look up the value of that key in the JSON from the url 8.25.
An example would be similar to this:
for (var element of myJson.elements) {
var reference = element.price; // prix_diesel
var referenceValue = jsonFromUrl.prix[reference]; // 8.25
}
This will find all the prices of your elements based on their reference (which is actually just the name of a key in your second JSON).
A side note, I noticed the JSON from your URL is supposed to be protected by login functionality. However, like you demonstrate in your own post, with the correct endpoints the data is easily accessible without needing to log in. If this is a product you own and you don't want this data to be publically available I'd suggest looking into a solution to prevent non-logged in users from requesting data. Have a look at passportjs.org.

i forked your plunker (changed your data.json too)
after loading second json you can get it like(code is something like "prix_diesel". it is in updated json)
function getPrice(code){
return priceData.prix[code];
}
updated

Error when I try to parse my json

I am using AngularJs doing a simple application And I want to set a variable up in a javascript file in orther to call a json file.
This is my data.js :
[{
var data = require('data_old.json');
var json = JSON.parse(data);
alert(json["date"]); //01/05/2016
alert(json.date); //01/05/2016
"name": "city A",
"elements": [{
"id": "c01",
"name": "name1",
"price": "15",
"qte": "10"
}, {
"id": "c02",
"name": "name2",
"price": "18",
"qte": "11"
}, {
"id": "c03",
"name": "name3",
"price": "11",
"qte": "14"
}],
"subsities": [{
"name": "sub A1",
"elements": [{
"id": "sub01",
"name": "nameSub1",
"price": "1",
"qte": "14"
}, {
"id": "sub02",
"name": "nameSub2",
"price": "8",
"qte": "13"
}, {
"id": "sub03",
"name": "nameSub3",
"price": "1",
"qte": "14"
}]
}, {
"name": "sub A2",
"elements": [{
"id": "ssub01",
"name": "nameSsub1",
"price": "1",
"qte": "7"
}, {
"id": "ssub02",
"name": "nameSsub2",
"price": "8",
"qte": "1"
}, {
"id": "ssub03",
"name": "nameSsub3",
"price": "4",
"qte": "19"
}]
}, {
"name": "sub A3",
"elements": [{
"id": "sssub01",
"name": "nameSssub1",
"price": "1",
"qte": "11"
}, {
"id": "sssub02",
"name": "nameSssub2",
"price": "2",
"qte": "15"
}, {
"id": "sssub03",
"name": "nameSssub3",
"price": "1",
"qte": "15"
}]
}]
}, {
"name": "city B",
"elements": [{
"id": "cc01",
"name": "name11",
"price": "10",
"qte": "11"
}, {
"id": "cc02",
"name": "name22",
"price": "14",
"qte": "19"
}, {
"id": "cc03",
"name": "name33",
"price": "11",
"qte": "18"
}]
}, {
"name": "city C",
"elements": [{
"id": "ccc01",
"name": "name111",
"price": "19",
"qte": "12"
}, {
"id": "ccc02",
"name": "name222",
"price": "18",
"qte": "17"
}, {
"id": "ccc03",
"name": "name333",
"price": "10",
"qte": "5"
}]
}]
And this is my data.json
[{
"date":"01/05/2016"
}]
I call my data here.
angular.module("myApp",['zingchart-angularjs'])
.controller('MainController', ['$scope', '$http', function($scope, $http) {
$scope.chartBase = {
"type": "line",
"plotarea": {
"adjust-layout": true /* For automatic margin adjustment. */
},
"scale-x": {
"label": {
"text": "Above is an example of a category scale" /* Add a scale title with a label object. */
},
"labels": ["name1", "name2", "name3"] /* Add your scale labels with a labels array. */
},
"series": [{
"values": [15, 18, 11] //here the prices of city selected
},{
"values": [10, 11, 14] //here the qte of city selected
}]
};
$scope.chartData = angular.copy($scope.chartBase);
$http.get('data.js')
.then(function(response) {
$scope.cities = response.data; // save the request data
$scope.selectedCity = $scope.cities[0]; // select the first one
$scope.changeCity(); // update chart
}, function(error) { console.log(error); });
$scope.changeCity = function() {
if($scope.selectedSubCity || $scope.selectedCity){ // if something has been selected
$scope.data = ($scope.selectedSubCity || $scope.selectedCity).elements; // update elements field
// initialize the array to be displayed in chart
var labels = [];
var price = {
"values": []
};
var qte = {
"values": []
};
// fill the arrays to be displayed from the selected city (sub city)
angular.forEach($scope.data, function(item, index) {
labels.push(item.name);
price.values.push(parseInt(item.price));
qte.values.push(parseInt(item.qte));
});
console.log($scope.chartData)
// put selected values to the field that is used to render the chart
$scope.chartData["scale-x"].labels = labels;
$scope.chartData.series = [ price, qte ];
}
}
}]);
When I run this, the browser tell that I have this error :
SyntaxError: Unexpected token v in JSON at position 5
at Object.parse (native)

You can't have those in your data.js file as they are not valid JSON
var data = require('data_old.json');
var json = JSON.parse(data);
alert(json["date"]); //01/05/2016
alert(json.date); //01/05/2016
The error is pointing to the first "v" of "var". You can test your JSON here http://json.parser.online.fr/ on some other online validator.
Your file should look like this:
[{
"name": "city A",
"elements": [{
"id": "c01",
"name": "name1",
"price": "15",
"qte": "10"
}, {
"id": "c02",
"name": "name2",
"price": "18",
"qte": "11"
}, {
"id": "c03",
"name": "name3",
"price": "11",
"qte": "14"
}],
"subsities": [{
"name": "sub A1",
"elements": [{
"id": "sub01",
"name": "nameSub1",
"price": "1",
"qte": "14"
}, {
"id": "sub02",
"name": "nameSub2",
"price": "8",
"qte": "13"
}, {
"id": "sub03",
"name": "nameSub3",
"price": "1",
"qte": "14"
}]
}, {
"name": "sub A2",
"elements": [{
"id": "ssub01",
"name": "nameSsub1",
"price": "1",
"qte": "7"
}, {
"id": "ssub02",
"name": "nameSsub2",
"price": "8",
"qte": "1"
}, {
"id": "ssub03",
"name": "nameSsub3",
"price": "4",
"qte": "19"
}]
}, {
"name": "sub A3",
"elements": [{
"id": "sssub01",
"name": "nameSssub1",
"price": "1",
"qte": "11"
}, {
"id": "sssub02",
"name": "nameSssub2",
"price": "2",
"qte": "15"
}, {
"id": "sssub03",
"name": "nameSssub3",
"price": "1",
"qte": "15"
}]
}]
}, {
"name": "city B",
"elements": [{
"id": "cc01",
"name": "name11",
"price": "10",
"qte": "11"
}, {
"id": "cc02",
"name": "name22",
"price": "14",
"qte": "19"
}, {
"id": "cc03",
"name": "name33",
"price": "11",
"qte": "18"
}]
}, {
"name": "city C",
"elements": [{
"id": "ccc01",
"name": "name111",
"price": "19",
"qte": "12"
}, {
"id": "ccc02",
"name": "name222",
"price": "18",
"qte": "17"
}, {
"id": "ccc03",
"name": "name333",
"price": "10",
"qte": "5"
}]
}]

var data = require('data_old.json');
var json = JSON.parse(data);
alert(json["date"]); //01/05/2016
alert(json.date); //01/05/2016
Why do you add those at the beginning of the JSON ? They cannot be parsed by your script, thus displaying the Syntax Error. What do you want to do exactly ?

validation of my code json

I am developping a simple application in AngularJs in the first time I create a script js but later I need to change it to json file so I need to validate this code json :
[{
"type": "line",
"plotarea": {
"adjust-layout":true /* For automatic margin adjustment. */
},
"scale-x": {
"label":{ /* Add a scale title with a label object. */
"text":"échelle essence gazoile",
},
/* Add your scale labels with a labels array. */
"labels":["sub01","sub02","sub02"]
},
"series": [
{"values":[1,8,1]},//here the prices of city selected
{"values":[14,13,14]}//here the qte of city selected
],
"name": "city A",
"elements": [{
"id": "c01",
"name": "name1",
"price": "15",
"qte": "10"
}, {
"id": "c02",
"name": "name2',
"price": "18,
"qte": "11"
}, {
"id": "c03",
"name": "name3",
"price": "11",
"qte": "14"
}],
"subsities": [{
"name": "sub A1",
"elements": [{
"id": "sub01",
"name": "nameSub1",
"price": "1",
"qte": "14"
}, {
"id": "sub02",
"name": "nameSub2",
"price": "8",
"qte": "13"
}, {
"id": "sub03",
"name": "nameSub3",
"price": "1",
"qte": "14"
}]
}, {
"name": "sub A2",
"elements": [{
"id": "ssub01",
"name": "nameSsub1",
"price": "1",
"qte": "7"
}, {
"id": "ssub02",
"name": "nameSsub2",
"price": "8",
"qte": "1"
}, {
"id": "ssub03",
"name": "nameSsub3",
"price": "4",
"qte": "19"
}]
}, {
"name": "sub A3",
"elements": [{
"id": "sssub01",
"name": "nameSssub1",
"price": "1",
"qte": "11"
}, {
"id": "sssub02",
"name": "nameSssub2",
"price": "2",
"qte": "15"
}, {
"id": "sssub03",
"name": "nameSssub3",
"price": "1",
"qte": "15"
}]
}]
}, {
"name": "city B",
"elements": [{
"id": "cc01",
"name": "name11",
"price": "10",
"qte": "11"
}, {
"id": "cc02",
"name": "name22",
"price": "14",
"qte": "19"
}, {
"id": "cc03",
"name": "name33",
"price": "11",
"qte": "18"
}]
}, {
"name": "city C",
"elements": [{
"id": "ccc01",
"name": "name111",
"price": "19",
"qte": "12"
}, {
"id": "ccc02",
"name": "name222",
"price": "18",
"qte": "17"
}, {
"id": "ccc03",
"name": "name333",
"price": "10",
"qte": "5"
}]
}];
A JSON Validator tells me that my code json is not correct.
Please anybody could help me !

The problem with comments and some of values doesn't contain , and some contains in the last value.(For example : 'json': {
'value1': 14,
'value2':14, // , is not allowed in the last line
}) Also last line can't contain ; after }]
Use this for validation jsonlint
This is correct json:
[{
"type": "line",
"plotarea": {
"adjust-layout": true
},
"scale-x": {
"label": {
"text": "échelle essence gazoile"
},
"labels": ["sub01", "sub02", "sub02"]
},
"series": [{
"values": [1, 8, 1]
}, {
"values": [14, 13, 14]
}],
"name": "city A",
"elements": [{
"id": "c01",
"name": "name1",
"price": "15",
"qte": "10"
}, {
"id": "c02",
"name": "name2",
"price": "18",
"qte": "11"
}, {
"id": "c03",
"name": "name3",
"price": "11",
"qte": "14"
}],
"subsities": [{
"name": "sub A1",
"elements": [{
"id": "sub01",
"name": "nameSub1",
"price": "1",
"qte": "14"
}, {
"id": "sub02",
"name": "nameSub2",
"price": "8",
"qte": "13"
}, {
"id": "sub03",
"name": "nameSub3",
"price": "1",
"qte": "14"
}]
}, {
"name": "sub A2",
"elements": [{
"id": "ssub01",
"name": "nameSsub1",
"price": "1",
"qte": "7"
}, {
"id": "ssub02",
"name": "nameSsub2",
"price": "8",
"qte": "1"
}, {
"id": "ssub03",
"name": "nameSsub3",
"price": "4",
"qte": "19"
}]
}, {
"name": "sub A3",
"elements": [{
"id": "sssub01",
"name": "nameSssub1",
"price": "1",
"qte": "11"
}, {
"id": "sssub02",
"name": "nameSssub2",
"price": "2",
"qte": "15"
}, {
"id": "sssub03",
"name": "nameSssub3",
"price": "1",
"qte": "15"
}]
}]
}, {
"name": "city B",
"elements": [{
"id": "cc01",
"name": "name11",
"price": "10",
"qte": "11"
}, {
"id": "cc02",
"name": "name22",
"price": "14",
"qte": "19"
}, {
"id": "cc03",
"name": "name33",
"price": "11",
"qte": "18"
}]
}, {
"name": "city C",
"elements": [{
"id": "ccc01",
"name": "name111",
"price": "19",
"qte": "12"
}, {
"id": "ccc02",
"name": "name222",
"price": "18",
"qte": "17"
}, {
"id": "ccc03",
"name": "name333",
"price": "10",
"qte": "5"
}]
}]

the problem is that you have comments in your JSON. This is not allowed in pure json.
In addition you have some syntax errors:
Line 8 :"text": "échelle essence gazoile", the , has to be removed because it is the last property of the object
Line 26: "name": "name2', change the singlequote to a doublequote
Line 27: "price": "18,: add a doublequote at the end
Last line: }]; remove the semicolon
This is your valid json:
[{
"type": "line",
"plotarea": {
"adjust-layout": true
},
"scale-x": {
"label": {
"text": "échelle essence gazoile"
},
"labels": ["sub01", "sub02", "sub02"]
},
"series": [{
"values": [1, 8, 1]
}, {
"values": [14, 13, 14]
}],
"name": "city A",
"elements": [{
"id": "c01",
"name": "name1",
"price": "15",
"qte": "10"
}, {
"id": "c02",
"name": "name2",
"price": "18",
"qte": "11"
}, {
"id": "c03",
"name": "name3",
"price": "11",
"qte": "14"
}],
"subsities": [{
"name": "sub A1",
"elements": [{
"id": "sub01",
"name": "nameSub1",
"price": "1",
"qte": "14"
}, {
"id": "sub02",
"name": "nameSub2",
"price": "8",
"qte": "13"
}, {
"id": "sub03",
"name": "nameSub3",
"price": "1",
"qte": "14"
}]
}, {
"name": "sub A2",
"elements": [{
"id": "ssub01",
"name": "nameSsub1",
"price": "1",
"qte": "7"
}, {
"id": "ssub02",
"name": "nameSsub2",
"price": "8",
"qte": "1"
}, {
"id": "ssub03",
"name": "nameSsub3",
"price": "4",
"qte": "19"
}]
}, {
"name": "sub A3",
"elements": [{
"id": "sssub01",
"name": "nameSssub1",
"price": "1",
"qte": "11"
}, {
"id": "sssub02",
"name": "nameSssub2",
"price": "2",
"qte": "15"
}, {
"id": "sssub03",
"name": "nameSssub3",
"price": "1",
"qte": "15"
}]
}]
}, {
"name": "city B",
"elements": [{
"id": "cc01",
"name": "name11",
"price": "10",
"qte": "11"
}, {
"id": "cc02",
"name": "name22",
"price": "14",
"qte": "19"
}, {
"id": "cc03",
"name": "name33",
"price": "11",
"qte": "18"
}]
}, {
"name": "city C",
"elements": [{
"id": "ccc01",
"name": "name111",
"price": "19",
"qte": "12"
}, {
"id": "ccc02",
"name": "name222",
"price": "18",
"qte": "17"
}, {
"id": "ccc03",
"name": "name333",
"price": "10",
"qte": "5"
}]
}]

You cannot have a C Style or C# style comments inside a json document.As a matter of fact you cannot have any comments inside a json document
You can validate your json document on http://jsonlint.com/

You can try this# http://jsonlint.com/
this will validate your json and also gives you error where you are doing mistakes