JSFiddle - React, Tailwind, and code Playground

by damir aushenov

JavaScript

var a = [5,12];
var b = [];

 a[99] = 7


for(var i = 0; i < a.length; i++) {
if(a[i])
b.push(Math.pow(a[i], 2));
}

for(var i =0 in a ) {
b.push(Math.pow(a[i], 2))
}



console.log(b)