docs: function getElemVarFromPath( path, _root ) {
      const root = typeof _root !== "undefined" ? _root : "that";
      const items = path.split( "/" ).map( function ( item ) {
          return camelCase( item.trim() );
      } );
      const result = items.map( function ( x, i ) {
          if ( i === 0 && items.length > 1 ) return `.$elements${keySyntax(x)}`;
          return `.${camelCase(x)}`;
      } );
      return `${root}${result.join("")}`;
  }