Laravel Localization in JavaScript

v3.1.0 2018-02-09 10:20 UTC

This package is auto-updated.

Last update: 2024-03-29 02:28:44 UTC


Laravel Localization in JavaScript.

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Laravel JS Lang Converter converts all your localization messages of your Laravel app to JavaScript, providing a small JavaScript library to interact with those messages in the fron end.

Most of the work has been developed in Mariuzzo's package

Laravel 5.5+ is supported. PHP 7.0 is required. For Laravel 5.1 - 5-4 versions, use the v2.x branch.


Add the following line to you composer.json file under require.

"michele-angioni/laravel-js-lang-converter": "~3.0"

and run composer update or composer install.

Then you need to add the Laravel JS Lang Converter service provider in your app/config/app.php file

'providers' => [
    // ...
    // ...

In order to use some package features, you need to publish the config file through the artisan command php artisan vendor:publish. It will create the laravel_js_lang.php file in your config directory.

Now you are done!


This project comes with a command that generate the JavaScript version of all your messages found in resources/lang directory. The resulting JavaScript file will have the whole bunch of messages and a thin library similar to Laravel's Lang class.

Generating JS messages

php artisan lang:js

Specifying a custom target

php artisan lang:js public/assets/dist/lang.dist.js

Converting only some files

If you don't want to convert ALL your lang files, you can specify the files you want to be converted into your laravel_js_lang.php conf file. Under the files array, just add the list of your source files, like so:

'files' => [

Compressing the JS file

php artisan lang:js -c

Use gulp to publish (optional):

  1. Install gulp-shell from https://github.com/sun-zheng-an/gulp-shell with npm install --save-dev gulp-shell .

  2. Create an extension for elixir in your gulpfile.js:

    var shell = require('gulp-shell');
    var Task = elixir.Task;
    elixir.extend('langjs', function(path, minimize) {
        new Task('langjs', function() {
            var command = "php artisan lang:js " + (path || "public/js/messages.js");
                if (minimize) {
                    command += " -c";
            return gulp.src("").pipe(shell(command));
    gulp.task('langJs', shell.task('php artisan lang:js -c public/js/messages.js'));
  3. Use the new elixir task:

elixir(function(mix) {
    var path = "public/js";
    var minimize = true;
    mix.langjs(path, minimize);


This is the documentation regarding the thin JavaScript library. The library is highly inspired on Laravel's Lang class.

Getting a message


Getting a message with replacements

Lang.get('messages.welcome', { name: 'Joe' });

Changing the locale


Checking if a message key exists


Support for singular and plural message based on a count

Lang.choice('messages.apples', 10);

Calling the choice method with replacements

Lang.choice('messages.apples', 10, { name: 'Joe' });

For more detailed information, take a look at the source: Lang.js.

How to contribute

Pull requests are welcome.

  1. Fork this repository and clone it.
  2. Create a branch from develop: git checkout -b feature-foo.
  3. Push your commits and create a pull request.

Setting up development environment


You need to have installed the following softwares.

  • Composer
  • NodeJS
  • NPM
  • PHP 7.0+

After getting all the required software you may run the following commands to get everything ready:

  1. Install PHP dependencies:
composer install
  1. Install NPM dependences:
npm install -g jasmine-node

npm install

Now you are good to go! Happy coding!

Unit testing

This project use Jasmine-Node and PHPUnit. All tests are stored at tests directory.

To run all JS tests type in you terminal:

npm test

To run all PHP tests type in your terminal:

vendor/bin/phpunit tests/