Programming using recursion is really simple yet intuitive. Here are a few examples in js. First, a factorial function (https://jsfiddle.net/ky8fjza7/). /* factorial: F(n) = n * F(n-1) F(n-1) = (n - 1) * F(n-2) ... F(1) = 1 */ // factorial functio...
Here's a nice use-case for generator functions. The following is an implementation of fibonacci sequence of arbitrary size (see https://jsfiddle.net/cj83gkno/). Generator function makes this really easy. /* Fibonacci sequence of arbitrary length 0, 1...
Consider the following custom Iterator. function makeRangeIterator(start = 0, end = Infinity, step = 1) { let nextIndex = start; let iterationCount = 0; const rangeIterator = { next() { let result; if (nextIndex < end) { ...
In this article I lay out how assignment is different from definition. const getMe={ __proto__: { get foobar() { return `${this.fb} is foobar!` }, set foobar(v) { this.fb...
let eventMixin = { /** * Subscribe to event, usage: * menu.on('select', function(item) { ... } */ on(eventName, handler) { if (!this._eventHandlers) this._eventHandlers = {}; if (!this._eventHandlers[eventName]) { this._eve...
Here we are going to set inheritance rules without using class extends.... By using new operator First way is to use new operator. Whenever you instantiate an object using new operator, you are also creating an instance. // Constructor function C() {...