By Dmitry Sheiko
About This Book
Who This booklet Is For
What you'll Learn
Style and approach
Approximately This Book
Understand how net 2. zero is made by means of robust browser-based applications
Step-by-step instructional that may exhibit you ways speedy, advanced internet purposes should be built
Who This ebook Is For
This e-book is predicated on Meteor 1. zero.
- You Don't Know JS: Types & Grammar
- Backbone.js Essentials
- HTML5 Game Development with ImpactJS
- jQuery Recipes
- Pro AngularJS
As you may remember, a module code is executed only once. js Pros and cons CommonJS has a concise and expressive syntax. It's very easy to use. Unit tests are usually written to run in the command line and preferably are a part of continuous integration. js-driven test framework (for example, Mocha) far out of the application context. However, CommonJS implies synchronous loading, which is not suitable in a browser. If we want to bypass this limitation, we have to transpile module sources into a single script that resolves module dependencies internally without loading (see "Traspiling CommonJS for in-browser use").
X. io/packaging-on-the-web/) that describes how archived files (scripts) can be accepted from a URL (hash). So, we will be able to bundle the entire directory with modules into an archive, deploy, and address them in the same way as we do when we have them in a directory. Transpiling CommonJS for in-browser use While HTTP/2 and Packaging on the Web are still on their way, we need fast modular applications. As it was previously mentioned, we can divide the application code into CommonJS modules and transpile them for in-browser use.
Log( instance instanceof Constructor ); // true We can also assign the members to the constructor prototype. log( instance instanceof Constructor ); // true In the first case, we have the object structure within the constructor function body mixed with the construction logic. In the second case by repeating Constructor. prototype, we violate the Do Not Repeat Yourself (DRY) principle. Approach with the private state So how can we do it otherwise? hasOwnProperty( "baz") ); // false instance instanceof Constructor ); // false The advantage of this approach is that any variables declared in the scope of the constructor are in the same closure as the returned object, and therefore, available through the object.