Function compareSemver

src/utils/axe-helpers.ts:177–188

* Compare two semver strings a and b. * Returns 1 if a > b, -1 if a < b, 0 if equal.

(a: string, b: string)

 * Returns 1 if a > b, -1 if a < b, 0 if equal.
 */
function compareSemver(a: string, b: string): number {
  const pa = a.split('.').map((n) => parseInt(n, 10));
  const pb = b.split('.').map((n) => parseInt(n, 10));
  const len = Math.max(pa.length, pb.length);
  for (let i = 0; i < len; i++) {
    const da = Number.isFinite(pa[i]) ? pa[i] : 0;
    const db = Number.isFinite(pb[i]) ? pb[i] : 0;
    if (da > db) return 1;
    if (da < db) return -1;
  }
  return 0;
}

/**
 * Determine whether the bundled AXe meets a minimum version requirement.