function toMatch() {
      return {
        compare: function (actual, expected) {
          if (!j$.isString_(expected) && !j$.isA_('RegExp', expected)) {
            throw new Error(getErrorMsg('Expected is not a String or a RegExp'));
          }

          const regexp = new RegExp(expected);

          return {
            pass: regexp.test(actual),
          };
        },
      };
    }
{@link expect} the actual value to match a regular expression
@function
@name matchers#toMatch
@since 1.3.0
@param {RegExp|String} expected - Value to look for in the string.
@example
expect("my string").toMatch(/string$/);
expect("other string").toMatch("her");