Douglas Crockford's Javascript. Code Conventions for the JavaScript Programming Language. This is a set of coding conventions and rules for use in JavaScript programming. The long-term value of software to an organization is in direct proportion to the quality of the codebase. Over its lifetime, a program will be handled by many pairs of hands and eyes. If a program is able to clearly communicate its structure and characteristics, it is less likely that it will break when modified in the never-too-distant future. Code conventions can help in reducing the brittleness of programs. All of our JavaScript code is sent directly to the public. It should always be of publication quality.
Neatness counts. JavaScript Files JavaScript programs should be stored in and delivered as .js files. JavaScript code should not be embedded in HTML files unless the code is specific to a single session. Whitespace Where possible, these rules are consistent with centuries of good practice with literary style. Blank lines improve readability by setting off sections of code that are logically related.
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Tutorials | MDN - Light. The links on this page lead to a variety of tutorials and training materials. Whether you are just starting out, learning the basics, or are an old hand at web development, you can find helpful resources here for best practices. These resources are created by forward-thinking companies and web developers who have embraced open standards and best practices for web development and that provide or allow translations, through an open content license such as Creative Commons. For complete beginners to the Web Getting started with the Web Getting started with the Web is a concise series introducing you to the practicalities of web development. You'll set up the tools you need to construct a simple webpage and publish your own simple code.
HTML Tutorials Introductory level Introduction to HTML This module sets the stage, getting you used to important concepts and syntax, looking at applying HTML to text, how to create hyperlinks, and how to use HTML to structure a webpage. MDN HTML element reference. Quick guide to somewhat advanced JavaScript. Last update: February 21st 2006 Hey, I didn't know you could do that If you are a web developer and come from the same place I do, you have probably used quite a bit of Javascript in your web pages, mostly as UI glue. Until recently, I knew that Javascript had more OO capabilities than I was employing, but I did not feel like I needed to use it.
As the browsers started to support a more standardized featureset of Javascript and the DOM, it became viable to write more complex and functional code to run on the client. As we all start to learn what it takes to write our cool, AJAXy applications, we begin to notice that the Javascript we used to know was really just the tip of the iceberg.
In many ways we can say that suddenly the bar was put much higher than before. The purpose of this article is precisely explaining the types of constructs that many of us are not familiar with yet. Related article Prototype.js documentation What do you mean? Take a look at this example. Whoa! Alertify.js - browser dialogs never looked so good. Unfortunately, I will no longer be maintaining alertify.js. I have many ongoing projects that aren't leaving me with enough time to do what needs to be done. If anyone wants to create a fork and maintain - by all means go for it! It's been great seeing people use it and enjoy it and this decision is simply because I don't believe it's fair that developers are looking for help and not getting it.
I wish I had more time or contributions to keep it going and make it better, but the sad reality is that not usually the case on these kinds of projects. Forks I will be updating this site to list forks of alertify.js. Stellar.js. Javascript. Java Script. JavaScript Garden - Light. Although JavaScript deals fine with the syntax of two matching curly braces for blocks, it does not support block scope; hence, all that is left in the language is function scope. function test() { // a scope for(var i = 0; i < 10; i++) { // not a scope // count } console.log(i); // 10} There are also no distinct namespaces in JavaScript, which means that everything gets defined in one globally shared namespace. Each time a variable is referenced, JavaScript will traverse upwards through all the scopes until it finds it. In the case that it reaches the global scope and still has not found the requested name, it will raise a ReferenceError.
The Bane of Global Variables // script Afoo = '42'; // script Bvar foo = '42' The above two scripts do not have the same effect. Again, that is not at all the same effect: not using var can have major implications. // global scopevar foo = 42;function test() { // local scope foo = 21;}test();foo; // 21 Local Variables var foo = 3; bar = 4;}test(10); Hoisting.
Javascript. JavaScript Guide - JavaScript | MDN - Light. The JavaScript Guide shows you how to use JavaScript and gives an overview of the language. If you need exhaustive information about a language feature, have a look at the JavaScript reference. This Guide is divided into the following chapters. Introduction Grammar and types Control flow and error handling Loops and iteration Functions Expressions and operators Numbers and dates Text formatting Indexed collections Keyed collections Working with objects Details of the object model Promises Iterators and generators. Javascript.