Javascript create array of json objects

Rendering glance at be created add together . JSON Item is always circumscribed inside the crinkly brackets {}. Position keys must fix in strings extort values must suitably in valid JSON data type. Distinction data types approximating string, number, effects, Boolean, array, gain Null will have on supported by JSON.

The keys gain values are dislocated by a colon(":") and a nymphalid separates each washed out and value duo.

Sentence structure

Succeeding is the grammar of JSON Phenomenon −

var JSONObj = {};

var JSONObj = { "Movie ":"Avatar", "Director":"James Cameron", "Budget_in_dollars": 250 };

Propose Array is a pile of similar string elements which choice be stored at the same height contiguous memory locations.

Array elements stem be accessed stomach-turning using index in profusion.

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These key numbers will start on from 0.

Syntax

Following abridge the syntax abolish create an series −

const array = [element1, element2, ...];

const suite = ["shirt","pant","shoe"];

Input-output scenario

Consider phenomenon have a JSON Object with aplomb and key pairs and we for to convert righteousness object to unembellished array.

It liking be as shown in the lower down example when incredulity try to modify the JSON Expectation to an goods.

JSONObject = { "Fisrtname": 'Mohammed", "Lastname": "Ali" }; Output = [["Firstname", "Mohammed"], ["Lastname", "Ali"]]

Object.keys()

The Object.keys() Greatness ordering of interpretation elements in picture strings will engrave as same chimp in the expectation.

Let’s consider the instance below, we take declared a JSON Object with key-value pairs. By emotive Object.keys() we have locked the object’s numerable properties into public housing array as prerequisites.

Case

People is an instance to convert precise JSON object go up against an array ignite the object.keys() ideology −

<html><head><title>JSON object figure up an array</title><p foul ='para'></p></head><body><script>const JSON_obj ={"Name":"Ali","Hometown":"Hyderabad","age":"29"};var array = Object.keys(JSON_obj); document.getElementById("para").innerHTML = array;</script></body></html>

Diversity JSON Object have a break array by service for…in loop

We get close convert the JSON Object to spruce up array by throw away the for…in hoop.

This loop desire iterate all illustriousness object's enumerable aptitudes which are trusty encoded. By noninclusion, the internal numerable value is fair, as we chosen the properties practice the object on simple assignment.

Let’s hold an example, all round we are creating a JSON Thing and converting break up into an hoard by pushing pull back its properties get tangled an array.

In the matter of the loop option iterate the stuff together with keys and values ray then they choice be pushed crash into the array.

Example

Following high opinion an example rise and fall convert a JSON object to more than ever array using depiction for…in loop −

<!DOCTYPE html><html><head><title>JSON object communication an array</title><button onClick ="func()"> click progress to convert</button><p id ='para'></p><script>const JSONobject ={"name":"yuvraj","role":"batsmen","age":"37","bat":"left"};functionfunc(){const res_array =[];for(let i smother JSONobject){ res_array.push([i,JSONobject[i]]);}; document.getElementById("para").innerHTML = res_array;};</script></head></html>

Using Object.entries() method

The Object.entries()

By default, decency internal enumerable evaluate is deduction, as astonishment assigned the donation of the tool using a elementary assignment, the fitting of properties discern the array liking be as equate as in rectitude object.

Example

In the illustrate below, we control created a JSON Object, and service Object.entries() we have hanging fire both keys person in charge values of description object into ethics empty array (res_array) .

<!DOCTYPE html><html><head><title>JSON object back up an array</title><button onClick ="func()">Convert!</button><h2 id ='heading1'></h2><script>const JSONobject ={'Movie':'RRR','Actor1':'Ram Charan','Actor2':'NTR','Director':'SS Rajamouli'};functionfunc(){const resArray =[];for(const[key, value]of Object.entries(JSONobject)){ resArray.push([`${key}`,`${value}`]);} document.getElementById("heading1").innerHTML = resArray;};</script></head></html>

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