nl_tokens: * @method average ( [ map ] ) @returns Number @short Averages all values in the array . @extra [ map ] may be a function mapping the value to be averaged or a string acting as a shortcut . @example
pl_tokens: function ( map ) { var arr = map ? this . <mask> ( map ) : this ; return arr . length > 0 ? arr . sum ( ) / arr . length : 0 ; }