6kyu-next-version.js

// You're fed up about changing the version of your software manually. Instead, you will create a little script that will make it for you.
// Exercice

// Create a function nextVersion, that will take a string in parameter, and will return a string containing the next version number.

// For example:

// nextVersion("1.2.3") === "1.2.4";
// nextVersion("0.9.9") === "1.0.0";
// nextVersion("1") === "2";
// nextVersion("1.2.3.4.5.6.7.8") === "1.2.3.4.5.6.7.9";
// nextVersion("9.9") === "10.0";

// Rules

// All numbers, except the first one, must be lower than 10: if there are, you have to set them to 0 and increment the next number in sequence.

// You can assume all tests inputs to be valid.

function nextVersion(version) {
        const versionArr = version.split('.').map(el => Number(el));

        for (let i = versionArr.length - 1; i >= 0; i -= 1) {
                if (i !== 0 && versionArr[i] === 9) {
                        versionArr[i] = 0;
                } else {
                        versionArr[i] += 1;
                        return versionArr.join('.');
                }
        }
}