squareDigits.js

// 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. (81-1-1-81)

// Example #2: An input of 765 will/should return 493625 because 72 is 49, 62 is 36, and 52 is 25. (49-36-25)

// Note: The function accepts an integer and returns an integer.

function squareDigits(num){
    var string = num.toString().split("")
    let results = []
    
    for (var i = 0; i < string.length; i++){
        const squared = string[i] * string[i];
        results.push(squared)
    }
    return parseInt(results.join(''));
};