copy object javascript
// es6
const obj = {name: 'john', surname: 'smith'};
const objCopy = {...obj};
copy object javascript
// es6
const obj = {name: 'john', surname: 'smith'};
const objCopy = {...obj};
javascript clone object
var x = {myProp: "value"};
var xClone = Object.assign({}, x);
//Obs: nested objects are still copied as reference.
mdn object assign
The Object.assign() method copies all enumerable own properties from one or more source objects to a target object. It returns the target object.
const target = { a: 1, b: 2 };
const source = { b: 4, c: 5 };
const returnedTarget = Object.assign(target, source);
console.log(target);
// expected output: Object { a: 1, b: 4, c: 5 }
console.log(returnedTarget);
// expected output: Object { a: 1, b: 4, c: 5 }
javascript clone object
// syntax: let <newObjectName> = {...<initialObjectName>};
// example:
const me = {
name: 'Jakes',
age: 30,
};
const friend = {...me};
friend.age = 27;
console.log(friend.age); // 27
console.log(me.age); // 30
// -----------------------------
// BAD
// -----------------------------
const me = {
name: 'Jonas',
age: 30,
};
const friend = me;
friend.age = 27;
console.log(friend.age); // 27
console.log(me.age); // 30
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