nl_tokens: Removes all items from the collection . Fires the {
pl_tokens: function ( ) { var me = this ; me . length = 0 ; <mask> . items = [ ] ; me . keys = [ ] ; me . map = { } ; me . indexMap = { } ; me . generation ++ ; me . indexGeneration = me . generation ; if ( me . hasListeners . clear ) { me . fireEvent ( 'clear' ) ; } }