Noncommital Premarital Mischief


    0.13.0 • Public • Published


    Ship Shape

    ember-prism is built and maintained by Ship Shape. Contact us for Ember.js consulting, development, and training for your project.

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    This project aims to make re-usable ember components for PrismJS. This project is packaged as an EmberCLI addon.


    • Ember.js v3.24 or above
    • Ember CLI v3.24 or above
    • Node.js v12 or above

    For Ember <= 3.12 use version 0.7.0 of ember-prism.


    Install the ember-cli addon in your ember-cli project:

    ember install ember-prism


    Using components

    We have two main components, code-block, and code-inline. They'll take care of running Prism on your code as you transition.

    They accept the code to be rendered by passing a @code argument:

    <CodeBlock @code="<a href='link'>value</a>" @language="markup" />

    While both variants support all features, the former is preferable when the code content is subject to changes (re-rendering). For the latter you may need to use &lt;, and &gt; html attributes to escape <, and > characters so they aren't removed by Handlebars.

    The @language argument is optional, and if passed should match one of Prism's supported languages.

    Overriding Line Numbers

    If you have opted to use the line-numbers plugin within your ember-cli-build.js, then you can optionally pass in @start to <CodeBlock/> to set a custom starting line. This is particularly useful when showing "contiguous" hunks of code (while not showing the entire code file).

    (within ember-cli-build.js):

    module.exports = function (defaults) {
      let app = new EmberAddon(defaults, {
        // other options
        'ember-prism': {
          plugins: ['line-numbers']

    (in your component that renders a <CodeBlock />)

    <CodeBlock @code="<html lang='en'>" @start={{2}} />

    This will result in the code block starting its line numbering from 2, instead of 1.


    You can set which theme, components, and plugins you'd like to use from Prism.

    // ember-cli-build.js
    var app = new EmberApp({
      'ember-prism': {
        'theme': 'twilight',
        'components': ['scss', 'javascript'], //needs to be an array, or undefined.
        'plugins': ['line-highlight']

    If you want to use the default theme, just remove the theme option completely.

    If you want hi-fi Glimmer / Ember highlighting, specify:

    components: ['markup'],

    and somewhere in your app:

    import { setup } from 'ember-prism';

    Running Locally

    Running tests

    • ember test – Runs the test suite on the current Ember version
    • ember test --server – Runs the test suite in "watch mode"
    • ember try:each – Runs the test suite against multiple Ember versions

    Running the dummy application


    See the Contributing guide for details.


    This project is licensed under the MIT License.


    npm i ember-prism

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    • rwwagner90
    • chuckcarpenter
    • brandonjmckay