Non-Polynomial Mantissa


    11.1.2 • Public • Published


    Build tools for developing Origami components.


    1. Install node.js

    2. Install the build tools globally:

      npm install -g origami-build-tools


    Developing Existing Components Locally

    First, change to your components directory:

    git clone
    cd o-table

    Then install its dependencies:

    obt install

    To preview the components demos run the dev command. The dev command will automatically re-build the demos every time a file changes:

    obt dev

    After making your changes run the linter and check for errors:

    obt lint

    Also run the components tests:

    obt test

    To debug JavaScript test errors with immediate feedback and breakpoints, pass the debug flag. This will open the tests in a browser window with logs in the browser console. It will also watch and rebuild tests when you make changes:

    obt test --debug

    Further, JavaScript tests may be run in BrowserStack automatically with the --browserstack flag. See the test command for more details.

    Creating A New Component

    Origami Build Tools provides boilerplate for creating up a new Origami component. Run obt init and follow the prompts.

    API Reference

    	$ obt <command> [<options>]
    	install, i             Install npm dependencies required to build the component
    	develop, dev           Build demos locally every time a file changes and run a server to view them
    	demo, d                Build demos into the demos directory
    	init                   Initialise a new component with a boilerplate folder structure
    	test, t                Run Origami specification tests and component specific tests
    	verify, v, lint, l     Check folder and code structure follows Origami specification
    	-h, --help                 Print out this message
    	-v, --version              Print out version of origami-build-tools
    	--browserstack             Run tests using Browserstack instead of Chrome Stable
    	--demo-filter=<demo-name>  Build a specific demo. E.G. --demo-filter=pa11y to build only the pa11y.html demo.
    	--brand=<brand-name>       Build SCSS for a given brand. E.G. --brand=internal to build the component for the internal brand.
    	--debug                    Keep the test runner open to enable debugging in any browser.


    install or i

    Install npm required to build components.

    develop or dev

    Build demos locally every time a file changes and run a server to view them.


    Creates boilerplate for a new Origami component.

    demo or d

    Build demos found in the origami.json manifest.

    Build a specific demo with the --demo-filter option.

    Demos consist of HTML, CSS and JS (if Sass & JS exists), and are created in demos/local/. These files should not be committed. It is recommended to add demos/local/ to your .gitignore.

    verify or v or lint or l

    Lints JavaScript, Sass and configuration files (see Origami code recommendations).

    test or t

    Runs JavaScript and Sass tests.

    • If --debug is set, the test runner will not exit automatically to allow debugging of the tests.

    Checks Sass includes a primary mixin. If pa11y.html demo exists, confirms it is accessible using Pa11y. Runs tests using Karma defaulting to Chrome Stable, can be configured to use BrowserStack by using the --browserstack flag. You will need the environment variables BROWSER_STACK_USERNAME and BROWSER_STACK_ACCESS_KEY set. This will run the tests on the minimum version for enhanced experience based on the [FT Browser Support Policy[(

    Migration Guides

    State Major Version Last Minor Release Migration guide
    active 11 N/A migrate to v11
    maintained 10 10.9 migrate to v10
    ╳ deprecated 9 9.0 migrate to v9
    ╳ deprecated 8 8.2 migrate to v8
    ╳ deprecated 7 7.14 migrate to v7
    ╳ deprecated 6 6.2 migrate to v6
    ╳ deprecated 5 5.8 -
    ╳ deprecated 4 4.5 -
    ╳ deprecated 3 3.3 -
    ╳ deprecated 2 2.1 -
    ╳ deprecated 1 1.0 N/A


    This software is published by the Financial Times under the MIT licence.




    npm i origami-build-tools

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