Run results for: Square Every Digit, but with toString()

Welcome. In this kata, you are asked to square every digit of a number and concatenate them. For example, if we run 9119 through the function, 811181 will come out, because 92 is 81 and 12 is 1. Note: The function accepts an integer and returns an integer

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Browser: Chrome 107

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
const nums	492729.8 Ops/sec
random nums	6181.6 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/react/16.3.0/cjs/react.production.min.js'></script>

Script Preparation code:

function squareDigits(num) {
    let result = '';
    for (let i = 0; i < num.toString().length; i++) {
        result += `${Number(num.toString()[i]) ** 2}`;
    }
    return Number(result);
}

Tests:

const nums
squareDigits(3212); squareDigits(2112); squareDigits(0);
random nums
function randint(min, max){ return Math.floor(Math.random() * (max - min + 1)) + min; } for(let i = 1; i <= 100; i++){ let num = randint(1, 10_000_000); squareDigits(num); }

Run results for: Square Every Digit, but with toString()

Welcome. In this kata, you are asked to square every digit of a number and concatenate them. For example, if we run 9119 through the function, 811181 will come out, because 92 is 81 and 12 is 1. Note: The function accepts an integer and returns an integer

const nums

random nums