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javascript object deep copy

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Wojciech Kapko answered on July 6, 2020 Popularity 9/10 Helpfulness 5/10

answer javascript object deep copy

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javascript object deep copy

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let copiedPerson = JSON.parse(JSON.stringify(person));

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: deep-copy javascript object

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Contributed on Nov 19 2022

Wojciech Kapko

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deep clone object javascript

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JSON.parse(JSON.stringify(object))

Popularity 10/10 Helpfulness 7/10 Language javascript

Source: Grepper

Tags: clone clon

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Contributed on Jul 06 2020

Batman

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deep clone object javascript

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//Using JSON stringify function
var obj2 = JSON.parse(JSON.stringify(obj));

//Using lodash deep clone method
var obj2 = _.cloneDeep(obj, true);

//Angular framework comes with angular.copy function
var obj2 = angular.copy(obj);

// Using jQuery extend function
var obj2 = $.extend(true, {}, obj);

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: clone clon

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Contributed on Jun 21 2022

Rasel Ahmed

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javascript deep copy object

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structuredClone(value)

☝️ Most efficient way, with Builtin function

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: deep-copy deep

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Contributed on Dec 20 2022

Abraham Adamu

0 Answers Avg Quality 2/10

object deep copy

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// Create an object with a value and a circular reference to itself.
const original = { name: "MDN" };
original.itself = original;

// Clone it
const clone = structuredClone(original);

console.assert(clone !== original); // the objects are not the same (not same identity)
console.assert(clone.name === "MDN"); // they do have the same values
console.assert(clone.itself === clone); // and the circular reference is preserved

Popularity 9/10 Helpfulness 4/10 Language javascript

Source: developer.mozilla.org

Tags: deep-copy deep

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Contributed on Sep 26 2022

shahul

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how to copy object in javascript shallow copy deep copy

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const obj = {a: 25, b: {x: 5, y: 10}, c: 75};

const copySpread = {...obj};
const copyAssign = Object.assign({}, obj);
const copyDeep = JSON.parse(JSON.stringify(obj));

// Modifying the nested object in the copied objects
copySpread.b.x = 99;
copyAssign.b.x = 100;
copyDeep.b.x = 101;

console.log(obj.b.x);       // Output: 101 (original object is modified)
console.log(copySpread.b.x); // Output: 99 (shallow copy, nested object is shared)
console.log(copyAssign.b.x); // Output: 100 (shallow copy, nested object is shared)
console.log(copyDeep.b.x);   // Output: 101 (deep copy, nested object is copied)

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Source: chat.openai.com

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Contributed on Aug 04 2023

somashekhar B

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how to deep copy an object in javascript

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const obj1 = { a: 1, b: 2, c: 3 };
// this converts the object to string so there will be no reference from 
// this first object
const s = JSON.stringify(obj1);

const obj2 = JSON.parse(s);

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Tags: deep-copy deep

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Contributed on Sep 12 2020

inAccurate

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function to deep copy of an object in javascript

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// Deep copying an object using recurssion
const deepCopy = (obj) => {
    if (!obj || typeof obj !== 'object')
        return obj;

    const newObj = Array.isArray(obj) ? [] : {};
  
    for (const key in obj) {
        newObj[key] = deepCopy(obj[key]);
    }
  
    return newObj;
}

const objectDeepCopy = deepCopy(originalObject);

It is a simple function that does not handle functions, circular references, objects with special characteristics like date, regexp.

Popularity 8/10 Helpfulness 2/10 Language javascript

Source: www.sitepoint.com

Tags: deep-copy function

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Contributed on Apr 17 2023

amit.bhagat

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javascript object deep copy

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