nl_tokens: Invokes a method on each item in an Array .
pl_tokens: function ( arr , methodName ) { var ret = [ ] , args = Array . prototype . slice . call ( arguments , 2 ) , a , v , aLen = arr . <mask> ; for ( a = 0 ; a < aLen ; a ++ ) { v = arr [ a ] ; if ( v && typeof v [ methodName ] == 'function' ) { ret . push ( v [ methodName ] . apply ( v , args ) ) ; } else { ret . push ( undefined ) ; } } return ret ; }