Language: TypeScript
Label: safe
CWE: CWE-79 \u2014 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Code:
export const matcher = (rawStr: string, regexp: RegExp) => {
  const matchResult = rawStr.match(regexp);
  return matchResult;
};