How It Works
It’s embedded right into the HTML of a page between tags. Or, an external JS file can be linked, which is helpful if multiple pages are sharing the same chunks of code.
- Functions are blocks of JS code that run on command, and “statements” are instructions that are executed by the browser. All of JS “code” is essentially a string of statements that are run in order, one by one.
- It’s able to run dynamic sites on anyone’s browser—period. This cross-browser support is made seamless with libraries like jQuery.
- SpiderMonkey: Mozilla Firefox
- Chakra: IE, Edge
- AngularJS: Extremely robust, geared toward desktop apps, and perfect for data-heavy sites, the AngularJS framework provides a great module-based structure for building complicated applications easily. It’s all about simplification, extending HTML, and using the shortest code possible.
- Backbone.js: A lightweight JS framework that’s a pared-down alternative to more full-featured frameworks, it’s all about minimalism. Backbone is used by sites like Airbnb and Pinterest.
- Ember.js: Another lightweight JS framework, Ember has been used by sites like Groupon and Zendesk. It hinges on site performance and comes with a built-in data module and template engine. It works particularly well with Ruby on Rails and is the best approach for developers familiar with object-oriented programming languages like Ruby, Python, C#, and Java.
- Meteor JS: An open-source, real-time framework, it was built on top of Node.js and works closely with MongoDB, a leading NoSQL open-source database.
- Koa.js: This next-generation framework for Node.js follows in Express’ footsteps.
- Prototype: A framework with a built-in API, it makes common JS tasks more streamlined to code.
- MooTools: Another JS framework with an API, it also streamlines common tasks but with a few extras, including effects and animation.
Core skills to look for:
- CSS: Cascading style sheets are the language that adds design layers to a site. CSS precompilers like Sass streamline CSS and boost productivity so much, they’ve become almost as common to know as the language itself.
- Node.js if you’ll need a developer with both front- and back-end capabilities
- GruntJS and Gulpjs: Task runners for streamlining front-end workflow
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