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how to copy object in js

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YOU.com answered on July 19, 2019 Popularity 8/10 Helpfulness 3/10

answer how to copy object in js

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how to copy object in js

Comment

const originalObject = { name: "John", age: 25 };
const copyObject = { ...originalObject };

Popularity 8/10 Helpfulness 3/10 Language javascript

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Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

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copy object javascript

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var x = {myProp: "value"};
var y = Object.assign({}, x);

Popularity 10/10 Helpfulness 6/10 Language javascript

Source: stackoverflow.com

Tags: copy

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Contributed on Mar 08 2020

Evil Eel

0 Answers Avg Quality 2/10

copy object javascript

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// es6
const obj = {name: 'john', surname: 'smith'};
const objCopy = {...obj};

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: copy

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Contributed on Apr 09 2020

Beautiful Bear

0 Answers Avg Quality 2/10

copy object javascript

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var x = {key: 'value'}
var y = JSON.parse(JSON.stringify(x))

//this method actually creates a reference-free version of the object, unlike the other methods
//If you do not use Dates, functions, undefined, regExp or Infinity within your object

Popularity 10/10 Helpfulness 5/10 Language javascript

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Tags: copy

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Contributed on May 22 2020

slgotting

0 Answers Avg Quality 2/10

copying object javascript

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// NORMAL COPY---------------------------------------
const a = { x: 0}
const b = a;
b.x = 1; // also updates a.x

// SHALLOW COPY---------------------------------------
const a = { x: 0, y: { z: 0 } };
const b = {...a}; // or const b = Object.assign({}, a);

b.x = 1; // doesn't update a.x
b.y.z = 1; // also updates a.y.z

// DEEP COPY---------------------------------------
const a = { x: 0, y: { z: 0 } };
const b = JSON.parse(JSON.stringify(a)); 

b.y.z = 1; // doesn't update a.y.z

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: copy

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Contributed on Feb 22 2022

Inquisitive Iguana

0 Answers Avg Quality 2/10

copy js object

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const clone = structuredClone(object);

Popularity 9/10 Helpfulness 4/10 Language javascript

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Tags: copy

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Contributed on Sep 01 2022

aon4o

0 Answers Avg Quality 2/10

how to clone an object in javascript

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var sheep={"height":20,"name":"Melvin"};
var clonedSheep=JSON.parse(JSON.stringify(sheep));

//note: cloning like this will not work with some complex objects such as:  Date(), undefined, Infinity
// For complex objects try: lodash's cloneDeep() method or angularJS angular.copy() method

Popularity 10/10 Helpfulness 3/10 Language javascript

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Tags: javascript j

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Contributed on Jul 19 2019

Grepper

0 Answers Avg Quality 2/10

clone an object javascript

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-1

//returns a copy of the object
function clone(obj) {
    if (null == obj || "object" != typeof obj) return obj;
    var copy = obj.constructor();
    for (var attr in obj) {
        if (obj.hasOwnProperty(attr)) copy[attr] = obj[attr];
    }
    return copy;
}

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: stackoverflow.com

Tags: clone clon

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Contributed on Jan 28 2020

QuietHumility

0 Answers Avg Quality 2/10

how to copy object in js

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