nl_tokens: Like parallel but only return the first non - undefined non - null result
pl_tokens: function race ( ) { var self = this ; argy ( arguments ) . ifForm ( '' , function ( ) { } ) . ifForm ( 'array' , function ( tasks ) { self . _struct . push ( { type : 'race' , payload : tasks } ) ; } ) . ifForm ( 'string array' , function ( id , tasks ) { self . _struct . push ( { type : 'race' , id : arguments [ 0 ] , payload : arguments [ 1 ] } ) ; } ) . ifFormElse ( function ( <mask> ) { throw new Error ( 'Unknown call style for .parallel(): ' + form ) ; } ) return self ; }