Function getRegExp

src/validators/pattern.ts:18–20

(pattern)

const DEFAULT_PARAMS: PatternArgs = null;

function getRegExp(pattern): RegExp {
  return pattern instanceof RegExp ? pattern : new RegExp(pattern);
}

function parsePattern({ pattern }: PatternArgs): RegExp {
  // Avoid RegExp like /true/ /false/ and /null/ without an explicit "true", "false" or "null"