I have JSON data like this -
var json = {
"details": [
{
"A": {
"Name": "mike",
"Age": 22
},
"B": {
"Name": "John",
"Age": 25
}
}
]
}I want to read A,B points as an array.
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How to access json object -> stackoverflow.com/questions/10895306/…Jixone– Jixone2017-08-15 05:56:01 +00:00Commented Aug 15, 2017 at 5:56
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2You surely have a piece of code we can help you to improve. We will not write your code.Zim84– Zim842017-08-15 05:56:06 +00:00Commented Aug 15, 2017 at 5:56
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I have small where I am just parsing the variable which created for json.Ashish– Ashish2017-08-15 06:36:27 +00:00Commented Aug 15, 2017 at 6:36
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3 Answers
Another way to do it with your json, Object.keys(),since your options are not in array form, can use that to convert to array form.
var json = {
"details": [
{
"A": {
"Name": "mike",
"Age": 22
},
"B": {
"Name": "John",
"Age": 25
}
}
]
}
var outputDiv = document.getElementById('output');
var options = Object.keys(json.details[0]).map(function(item){
return '<option value="'+item+'">'+ item +'</option>'
})
options.unshift('<option value="" > Please select </option>')
var select = document.getElementById('your_options');
select.innerHTML = options.join()
select.onchange = function() {
outputDiv.innerHTML = JSON.stringify(json.details[0][this.value]);
}<label>You options</label>
<select id="your_options">
</select>
<div id="output"></div>
Lets assume you receive the following JSON from a web server
'{ "firstName":"Foo", "lastName":"Bar" }'
To access this data you first need to parse the raw JSON and form a Javascript object
let response = JSON.parse('{ "firstName":"Foo", "lastName":"Bar" }');
This forms an object which we can access relativly simply
let firstName = response["firstName"];
let lastName = response["lastName"];
Comments
Have a look at javascript documentation regarding JSON: http://devdocs.io/javascript-json/
Examples:
JSON.parse('{}'); // {}
JSON.parse('true'); // true
JSON.parse('"foo"'); // "foo"
JSON.parse('[1, 5, "false"]'); // [1, 5, "false"]
JSON.parse('null'); // null
