laravel-mix-code-splitter

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Install

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NPM

npm install --save-dev laravel-mix-code-splitter

Yarn

yarn add laravel-mix-code-splitter --save

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Purpose

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• Split Code
• Improve Apps
• Improve User Lives
• Improve Developer Lives
• Hook Into Laravel Mix without Losing any original, core logic

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Laravel Mix Code Splitter

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Definition from google

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"Modern sites often combine all of their JavaScript into a single, large bundle. ... An alternative to large bundles is code-splitting, which is where JavaScript is split into smaller chunks. This enables sending the minimal code required to provide value upfront, improving page-load times. The rest can be loaded on demand."

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Setup

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1. webpack.mix.js

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let mix = require('laravel-mix');
require('laravel-mix-code-splitter');
 
/** Normally, we create a single global file -- available on all pages **/
mix.js('resources/js/app.js', 'public/js/app.js')
 
  /*----------------------------------------------------------
   | Code splitting allows us to "split" our code up.
   *----------------------------------------------------------
   |  
   | -> resources   
   |    . /js/split/home.js       
   |    . /js/split/badges.js
   |    . /js/split/invoices.js
   |         
   */  
   .split(mix.js, 'resources/js/split', 'public/js/split') 
 
   /*----------------------------------------------------------------------------
 	| Providing splits of our code for each page or feature specific page
 	*----------------------------------------------------------------------------
 	|  
 	| -> public  
 	|    . /js/split/home.js
 	|    . /js/split/badges.js
 	|    . /js/split/invoices.js
 	|
 	*/

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2. Cool, cool -- sound great, how do we actually "code split" within Laravel?

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After mix does its thing, there's multitudes of ways to dynamically load the proper split for the current route ~ here's a simpler implementation I personally like

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routes/web.php

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Add names to your routes, we'll use resourceful routes to speed the example up

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Route::resource('home', 'HomeController')->home('home');
Route::resource('badges', 'BadgesController')->name('badges');
Route::resource('invoices', 'InvoiceController')->name('invoices');

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Add snippet to your primary layout blade file

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resources/views/layouts/app.blade.php

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• First we load our js (app.js)
• Then we check if there is a code split
• If there is a code split for the current route resource group, we load it

 
<script src="{{ asset('js/app.js') }}"></script>
 
@if (asset( "js/split". Str::of(Route::currentRouteName())->before('.')->append('.js') ))
    <script src="{{ asset( Str::of(Route::currentRouteName())->before('.')->start('js/split')->finish('.js') ) }}"></script> 
@endif

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home.js loads on visits to

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• /home
• /home/{id}
• /home/create
• /home/{id}/edit

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badges.js loads on visits to

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• /badges
• /badges/{id}
• /badges/create
• /badges/{id}/edit

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invoices.js loads on visits to

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• /invoices
• /invoices/{id}
• /invoices/create
• /invoices/{id}/edit

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app.js loads on every page

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Code splitting non-js files

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let mix = require('laravel-mix');
require('laravel-mix-code-splitter');
 
mix
 
.js('resources/js/app.js', 'public/js/app.js')
.split(mix.js, 'resources/js/split', 'public/js/split') 
 
 
.css('resources/js/app.css', 'public/css/app.css')
.split(mix.css, 'resources/css/split', 'public/css/split')
 
.css('resources/js/app.css', 'public/css/app.css')
.split(mix.css, 'resources/css/split', 'public/css/split')
 
.postCss('resources/css/main.css', 'public/css', [require('precss')()])
.split(mix.postCss, 'resources/css', 'public/css/split', [require('precss')()])
 
// etc...