function normalizeVersions()

in packages/fbjs/src/useragent/VersionRange.js [256:280]

• 18 lines of code
• 6 McCabe index (conditional complexity)

function normalizeVersions(a, b) {
  a = a.slice();
  b = b.slice();

  zeroPad(a, b.length);

  // mark "x" and "*" components as equal
  for (let i = 0; i < b.length; i++) {
    const matches = b[i].match(/^[x*]$/i);
    if (matches) {
      b[i] = a[i] = '0';

      // final "*" greedily zeros all remaining components
      if (matches[0] === '*' && i === b.length - 1) {
        for (let j = i; j < a.length; j++) {
          a[j] = '0';
        }
      }
    }
  }

  zeroPad(b, a.length);

  return [a, b];
}