![]() If you are using something like Browserify or Webpack in your JavaScript build pipeline, adding Babel transpilation takes only a couple of minutes. Babel is an ES6 to ES5 transpiler that supports all of the ES6 features. People and large companies no longer shy away. How can you take advantage of ES6 features today? Using transpilers in the last couple of years has become the norm. There’s no longer a need for the UMD boilerplate in publicly distributed libraries. ![]() We get compact module syntax and the static module definition could assist with future compiler optimizations and maybe even type checking. The argument between whether to use CommonJS or AMD has finally been resolved. print () // 10 Bottom LineĮS2015 modules standardize the way module loading and resolution should be done in modern JavaScript. When this has proven itself to be pretty cumbersome, we started wrapping each file in an IIFE: (function() // module-test.js import m from '. Traditionally JavaScript applications were partitioned in files and concatenated during build time. In essence, it all comes down to code organization and not having to worry about clobbering existing variables each time you need to declare a new one. This makes it pretty challenging to write even small applications without having to deal with naming conflicts. The most common JavaScript platform today is a web browser which by design executes all of the code in a single global context. ![]() If you are still reading this, here’s your basic primer on why JavaScript needs modules. If this sounds like an obvious question, you can probably jump to the next section in the article. Module loading and packaging will be covered at another time. This article will focus on ES2015 module syntax and some of its gotchas. ![]() Asynchronous and configurable module loading.ES2015 formalizes what CommonJS (the basis for modules in Node.js) and AMD have tried to address in an attempt to take all the strengths and leave out the weaknesses: Note: This blog post is also available at IBM DeveloperWorks.ĮCMAScript 2015 (formerly known as ES6) introduces a completely new feature and concept to the front-end JavaScript world that strangely has been around for a very long time – modules. ![]()
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