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#How to run webpack require code#

They provide us with a wide range of solutions about asset management, bundle minimization and optimization, and so on.

Plugins: plugins are used for any other task that loaders can’t do.

With loaders we can even import CSS files directly from our JavaScript modules. For example, a loader can transform files from a CoffeeScript language to JavaScript or inline images to data URLs.

#How to run webpack require code#

Loaders transform the source code of non-JavaScript modules, allowing us to preprocess those files before they’re added to the dependency graph.

To process other types of files and convert them into valid modules, webpack uses loaders.

Loaders: by default, webpack only understands JavaScript and JSON files.

Of course, we can specify different values in the configuration depending on our needs. dist for other generated files - such as images, for example.

Output: the output property instructs webpack where to emit the bundle(s) and what name to use for the file(s).

src/index.js, but we can specify a different module (or even multiple modules) in the webpack configuration file. By default, the entry property is set to. From there, it determines which other modules and libraries that entry point depends on (directly and indirectly) and includes them in the graph until no dependency is left.

Entry: the entry point is the module that webpack uses to start building its internal dependency graph.

Webpack has some main concepts which we need to understand clearly before digging in its practical implementation. Now, to expand the above cursory overview, let’s explore the main concepts webpack uses.

This can then be included in your HTML files. “Statically” means that, when webpack builds its dependency graph, it doesn’t execute the source code but stitches modules and their dependencies together into a bundle. In this way, webpack statically traverses all modules to build the graph, and uses it to generate a single bundle (or several bundles) - a JavaScript file containing the code from all modules combined in the correct order. A dependency graph describes how modules relate to each other using the references ( require and import statements) between files. Under the hood, it relies on a dependency graph. In a particular project, webpack treats all files and assets as modules. What Is Webpack?Īs its core, webpack is a static module bundler. Note: in this tutorial I’ve used webpack 5.9.0. In this tutorial, I’ll introduce all the core concepts to help you get started. However, webpack is worth learning and can save considerable time and effort in the long run. Although it has good documentation, it can be daunting for novices, and it has a steep learning curve. When using webpack for the first time, it can be difficult to understand how it works and how it should be used. As a result, we need to utilize additional time and effort to learn, understand and use these tools correctly. Often, though, such tools add an extra layer of complexity into the stack. Nowadays, we’re forced to use many accessory tools to facilitate, speed up and optimize our web development workflow.