dsetzer

// Calculates the sum of the items in the array.
// The sum is the result of adding all the items together.
Array.prototype.sum = function(){
	return this.reduce((a, b) => a + b);
}

// Checks whether the specified item is present in the array.
Array.prototype.contains = function (item) {
	return this.find(x => x === item) !== undefined;
}

dsetzer

const DEBUG = !0
const BET_BALANCE = 0.03 // max bankroll available to bet with
const MAX_CUT_OFF = 1.5
const MIN_CUT_OFF = 1.08
const BET_SPEED = 300
const iskips = 20
const hmrsv = 3
let prevresults = [];
let previous_losses = [];
let loseStreak = 0;

Prateek479

function asyncParForEach(array, fn, callback) {
  var completed = 0;
  if (array.length === 0) {
    callback(); // done immediately
  }
  array.forEach(function(data) {
    fn(data, function() {
      completed++;
      if (completed === array.length) {

ScottKaye

//Get a range of numbers between two numbers
//Usage: [1, 10].range returns [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Object.defineProperty(Array.prototype, "range", {
	get: function () {
		var range = [this[0]], i;
		for (var i = this[0], len = this[1]; i < len; range.push(++i));
		return range;
	}
});
// Golfed TypeScript: