nl_tokens: merge multiple objects
pl_tokens: function deepAssign ( ) { for ( var _len = arguments . length , args = Array ( _len ) , _key2 = 0 ; _key2 < _len ; _key2 ++ ) { args [ _key2 ] = arguments [ _key2 ] ; } if ( args . length < 2 ) { throw new Error ( 'deepAssign accept two and more argument' ) ; } for ( var i = args . length - 1 ; i > - 1 ; i -- ) { if ( isPrimitive ( args [ i ] ) ) { throw new TypeError ( 'deepAssign only accept non primitive type' ) ; } } var target = args . <mask> ( ) ; args . forEach ( function ( source ) { return _deepAssign ( source , target ) ; } ) ; return target ; }