const {} = object in javascript
const age; // errror as const cannot be kept un-initialized;
const age = 20 ;
const age = 21 , // error as once declared const variable cann't be
// re-declared in same scope or different scope.
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3.5
6
/*The destructuring assignment syntax is a JavaScript expression that
makes it possible to unpack values from arrays, or properties from objects,
into distinct variables.*/
let array = [2,3];
[a,b] = array;// unpacking array into var a and b
console.log(a); //output 2
console.log(b); //output 3
let object = {name:"someone",weight:"500pounds"};
let {name,weight} = object; // unpacking object into var name and weight
console.log(name);// output someone
console.log(weight);//output 500pounds
//it i similar as doing this
/*
var a = array[0];
var b = array[1]
var name = object.name;
var weight = object.weight;
*/
Thank you!
6
3.5
(6 Votes)
0
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