javascript array concat spread operator
const arr1 = [1,2,3]
const arr2 = [4,5,6]
const arr3 = [...arr1, ...arr2] //arr3 ==> [1,2,3,4,5,6]javascript array concat spread operator
const arr1 = [1,2,3]
const arr2 = [4,5,6]
const arr3 = [...arr1, ...arr2] //arr3 ==> [1,2,3,4,5,6]javascript merge two array with spread operator
const a = ['to', 'code'];
const b = ['learning', ...a, 'is', 'fun'];
console.log(b); //> ['learning', 'to', 'code', 'is', 'fun']Merging Or Copying Arrays Using Spread Operator
let techlist1= ['spring', 'java'];
let techlist2= ['javascript', 'nodejs', 'mongo'];
let fullstacklist= […techlist1, …techlist2];
console.log(fullstacklist);Copyright © 2021 Codeinu
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