ezStyles

Creating style sheets dynamically via javascript. This is useful if you have a module with a very small set of styles and do not want to provide a separate CSS to download.

Install

If you are using ezStyles with browserify or some such mechanism, you can get it as an npm module

npm install ezstyles

If you are using it in the browser, you can direclty include ezStyles.js which has no dependencies. Replace the path to the CDN location you are using in the following example:

<script src="/like-falling-leaves.github.io/ezStyles/ezStyles.js"></script>

Creating a style sheet

Usage:

// var ezStyles = require('ezstyle'); // for npm environments only.  for browser, this is a global
ezStyles.create({
   id: 'some_unique_id',  // this is the element ID
   styles: [  // styles are provided as pairs: [selector, rule]
      [ 'body', 'margin: 0; padding: 0;' ],
      [ 'li:nth-child(even)', 'background-color: light-grey;']
   ]
});

Options

• id is the unique id of the stylesheet. It is useful to prevent the same stylesheet from being added again (if the id exists, nothing is done by this function). it is also useful if you want to remove this stylsheet later on or append more rules to it later on.
• styles is an array of CSS rules where each rule is specified as a pair: a selector and the actual rule. You can also pass an object here instead of arrays with keys being the selector and values being the styles.

Removing a style sheet

Usage:

    ezStyles.remove('some_unique_id'); // the ID must match the ID provided in the create call.

Appending to a style sheet that was created before

Usage:

    ezStyles.append(
      'some_unique_id', // this ID should match the ID provided in the create call
      [ // these rules are specified in the same format as in the create call
         ['body', 'margin: 0; padding: 0; border: 0;']
      ]
    );

Using objects instead of arrays

Usage:

    ezStyles.append(
      'some_unique_id', // this ID should match the ID provided in the create call
      { // these rules are specified in the same format as in the create call
        body: 'margin: 0; padding: 0; border: 0;'
      }
    );