JSFiddle - React, Tailwind, and code Playground

by danbeam

JavaScript

//var cStr = [null];
//var cStr = ['a', null];
var cStr = ['a', 'b', 'c', 'd', null];
//var cStr = ['a', 'b', null, 'c', 'd'];
for (var size = 0; cStr[size] != null; ++size) {}
if (size > 0) size -= 1;
for (var i = 0; i <= Math.floor(size / 2); ++i) {
    var tmp = '' + cStr[i];
    cStr[i] = cStr[size - i];
    cStr[size - i] = tmp;
}
console.log(cStr);