#Why use webpack and node js manual#

While CommonJS was a great solution for Node.js projects, browsers didn't support modules, so bundlers and tools like Browserify, RequireJS and SystemJS were created, allowing us to write CommonJS modules that run in a browser.

Synchronous module resolution and loading is slow. There are problems with circular references. JavaScript is taking over the world as a language, as a platform and as a way to rapidly develop and create fast applications.Р”В«ut there is no browser support for CommonJS. npm + Node.js + modules РІР‚вЂњ mass distribution This solved scope issues out of the box by importing each module as it was needed. Now that JavaScript is not running in a browser, how are Node applications supposed to load new chunks of code? There are no html files and script tags that can be added to it.Р”В¬ommonJS came out and introduced require, which allows you to load and use a module in the current file. When Node.js was released a new era started, and it came with new challenges. Webpack runs on Node.js, a JavaScript runtime that can be used in computers and servers outside a browser environment. Birth of JavaScript Modules happened thanks to Node.js

#Why use webpack and node js manual#

How do you treeshake the dependencies on your code? Lazy loading chunks of code can be hard to do at scale and requires a lot of manual work from the developer.

How can you find out if code is actually being used or not?Р”В®ven if you only use a single function from lodash, you have to add the entire library and then squish it together. Concatenating makes it easier to reuse scripts across files but makes build optimizations more difficult. However, changing one file means you have to rebuild the whole thing. These tools are known as task runners, and they concatenate all your project files together. The use of IIFEs led to tools like Make, Gulp, Grunt, Broccoli or Brunch. IIFEs solve scoping issues for large projects when script files are wrapped by an IIFE, you can safely concatenate or safely combine files without worrying about scope collision. IIFEs - Immediately invoked function expressions js file containing all your project code, but this leads to problems in scope, size, readability and maintainability. First, include a script for each functionality this solution is hard to scale because loading too many scripts can cause a network bottleneck. There are two ways to run JavaScript in a browser. Error: error:0308010C:digital envelope routines::unsupportedР”Р„t new Hash (node:internal/crypto/hash:67:19)Р”Р„t Object.createHash (node:crypto:130:10)Р”Р„t BulkUpdateDecorator.hashFactory (/opt/src/node_modules/webpack/lib/util/createHash.js:155:18)Р”Р„t BulkUpdateDecorator.digest (/opt/src/node_modules/webpack/lib/util/createHash.js:80:21)Р”Р„t /opt/src/node_modules/webpack/lib/DefinePlugin.js:595:38Р”Р„t Hook.eval (eval at create (/opt/src/node_modules/tapable/lib/HookCodeFactory.js:19:10), :100:1)Р”Р„t Hook.CALL_DELEGATE (/opt/src/node_modules/tapable/lib/Hook.js:14:14)Р”Р„t Compiler.newCompilation (/opt/src/node_modules/webpack/lib/Compiler.js:1053:26)Р”Р„t /opt/src/node_modules/webpack/lib/Compiler.js:1097:29Р”Р„t Hook.eval (eval at create (/opt/src/node_modules/tapable/lib/HookCodeFactory.To understand why you should use webpack, let's recap how we used JavaScript on the web before bundlers were a thing.