public/libraries.js
function (key) {
                    Array.prototype[i].apply(series[key + 'Data'], Array.prototype.slice.call(args, 2));
                }
function (key) {
                    Array.prototype[i].apply(series[key + 'Data'], Array.prototype.slice.call(args, 2));
                }
function ( key ) { Array . prototype [ i ] . apply ( series [ key + 'Data' ] , Array . prototype . slice . call ( args , 2 ) ) ; }
Apply the method specified in i with the following arguments as arguments
Apply the method specified in i with the following arguments as arguments