code: function detectStrictMode(src) {
      var singleLine;
      var multiLine;
  
      while ((singleLine = singleLineComment.test(src)) || (multiLine = multiLineComment.test(src))) {
          if (singleLine) {
              src = src.replace(singleLineComment, "");
          }
          if (multiLine) {
              src = src.replace(multiLineComment, "");
          }
      }
  
      return strictMode.test(src);
  }
docs: Returns true if the source code is intended to run in strict mode. Does not detect
  "use strict" if it occurs in a nested function.
  
  @param {String} src
  @return {Boolean}