Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jade, coffee, css, less, ... and your custom stuff.
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Pro Rich and flexible plugin infrastructure
Plugins and loaders are easy to write and allow you to control each step of the build, from loading and compiling CoffeeScript, LESS and JADE files to smart post processing and asset manifest building.
Pro Tap into npm's huge module ecosystem
Using Webpack opens you up to npm, that has over 80k modules of which a great amount work both client-side and server-side. And the list is growing rapidly.
Pro ES6 module support
Webpack supports ES6 modules and their
export methods without having to compile them to CommonJS
Pro Can create a single bundle or multiple chunks loaded on demand, to reduce initial loading time
Webpack allows you to split your codebase into multiple chunks. Chunks are loaded on demand. This reduces the initial loading time.
Pro Supports source maps for easier debugging
Source maps allow for easier debugging, because they allow you to find the problems within the origin files instead of the output file.
Pro Share the same modules client-side and server-side
Because Webpack allows you to use the same require() function as node.js, you can easily share modules between the client-side and server-side.
Pro Bundles CommonJs and AMD modules (even combined)
Webpack supports AMD and CommonJS module styles. It performs clever static analysis on the AST of your code. It even has an evaluation engine to evaluate simple expressions. This allows you to support most existing libraries.
Pro Mix ES6 AMD and CommonJS
Webpack supports using all three module types, even in the same file.
Pro Limit plugin integration issues
Con Config file may be hard to understand
Due to a somewhat hard to grasp syntax, configuring Webpack may take some time.