nl_tokens: Remove an item from the collection .
pl_tokens: function ( o ) { var me = this , removeKey , index ; // If //     We have not been forced into using linear lookup by a usage of the 2 arg form of add // and //     The key extraction function yields a key // Then use indexOfKey. This will use the indexMap - rebuilding it if necessary. if ( ! me . useLinearSearch && ( removeKey = me . getKey ( o ) ) ) { index = me . indexOfKey ( removeKey ) ; } // Otherwise we have to do it the slow way with a linear search. else { <mask> = Ext . Array . indexOf ( me . items , o ) ; } return ( index === - 1 ) ? false : me . removeAt ( index ) ; }