Gjore Milevski dzole0311

Eric Elliott's "Composing Software" Series

A collection of links to the excellent "Composing Software" series of medium stories by Eric Elliott.

The Revealing Module Pattern in Javascript

Zach Caceres

Javascript does not have the typical 'private' and 'public' specifiers of more traditional object oriented languages like C# or Java. However, you can achieve the same effect through the clever application of Javascript's function-level scoping. The Revealing Module pattern is a design pattern for Javascript applications that elegantly solves this problem.

The central principle of the Revealing Module pattern is that all functionality and variables should be hidden unless deliberately exposed.

Let's imagine we have a music application where a musicPlayer.js file handles much of our user's experience. We need to access some methods, but shouldn't be able to mess with other methods or variables.

	<!DOCTYPE html>
	<html>

	<head>
	<title>Mapbox GL JS debug page</title>
	<meta charset='utf-8'>
	<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
	<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v2.12.0/mapbox-gl.css' rel='stylesheet' />
	<style>
	body {

	#!/usr/bin/env python
	#coding=utf-8

	import apt
	import apt_pkg
	from time import strftime
	import os
	import subprocess
	import sys

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Tornado WebSocket Sample</title>
	</head>
	<body>
	<input type="text" id="username" value="myname" />
	<button id="connect">connect</button>
	<div id="result"></div>

Gjore Milevski dzole0311

Eric Elliott's "Composing Software" Series

The Revealing Module Pattern in Javascript

Using Function Scope to Create Public and Private Methods