Response to https://twitter.com/joelnet/status/1558098480018735106

version_compare.js

const compare = (a, b) => {
  // 1. Split by `.`
  const splitA = a.split('.');
  const splitB = b.split('.');

  // 2. Inner Compare function for each conmponent
  const _cmp = (an, bn) => (an < bn ? -1 : an > bn ? 1 : 0);

  const maxLoop = Math.max(splitA.length, splitB.length);

  // 3. Loop through component
  for (let i = 0; i < maxLoop; i++) {
    // 4. Compare the component
    const r = _cmp(parseInt(splitA[i]), parseInt(splitB[i]));

    // If not-equal, return the result (1 or -1)
    if (r !== 0) {
      return r;
    }
  }

  // Return 0 if all components are equal
  return 0;
};

console.log(compare('2.0.0', '10.0.0'));
console.log(compare('1.3.1', '1.2.7'));
console.log(compare('1.0.0', '1.0.0'));