node package manager


A grunt plugin to generate instant side-by-side view of your comments and code.


A grunt plugin to generate instant side-by-side view of your comments and code (thanks to ExplainJS).

This plugin requires Grunt ~0.4.1

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-explainjs --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:


Here is ExplainJS ran on this grunt plugin.

In your project's Gruntfile, add a section named explainjs to the data object passed into grunt.initConfig().

  explainjs: {
    dist: {
      options: {
        showFilename: true // default is false 
      files: [{
        src: ['dist/scripts/scripts.js'],
        dest: 'dist/explainjs/explain.html'

By default, this plugin will take the file in src (works best with one) and run ExplainJS on it, outputting the formatted results to the file specified in dest. I recommend using this at a point in your build process that happens after concatenation but before minification.

With the following config:

  explainjs: {
    files: {
      'dist/explainjs/explain.html': ['dist/scripts/scripts.js'],

Your build task might look like this:

grunt.registerTask('build', [
  'concat', // concat files here, gives me dist/scripts/scripts.js (not minified) 
  'explainjs', // explain here 

Type: Boolean Default value: false

Specifies whether or not to show (and include a link to) the file that ExplainJS was ran on. In some (most?) cases that file will be minified or moved. But if needed, the option is there.

Type: String Default value: node_modules/grunt-explainjs/tasks/templates/_out.hbs

Sets the path of ExplainJS template. You can set template path as: templatePath: '<%= %>/templates/_template.hbs'

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.

12/20/2015 - 0.0.3 Added ability to specify templatePath in the options (thanks alaabadran) 09/12/2013 - 0.0.2 Fixed pre tag generation, package.json typos (thanks kevmoo) 05/15/2013 - 0.0.1 initial release