segmentio/load-script

Load a Javascript file asynchronously.

load-script

Note
Segment has paused maintenance on this project, but may return it to an active status in the future. Issues and pull requests from external contributors are not being considered, although internal contributions may appear from time to time. The project remains available under its open source license for anyone to use.

Component which asynchronously loads a JavaScript file by appending a script tag to the DOM.

Installation

$ npm install @segment/load-script

Examples

var load = require('@segment/load-script');

load('//www.google-analytics.com/ga.js');

Load in a URL depending on the current protocol.

var load = require('@segment/load-script');

load({
  http: 'http://www.google-analytics.com/ga.js',
  https: 'https://ssl.google-analytics.com/ga.js'
});

API

loadScript(src || options, callback)

Load the given script either by passing a src string, or an options object:

{
  src: '//example.com/lib.js', // same as `src` string
  http: 'http://example.com/lib.js', // `src` to load if the protocol is `http:`
  https: 'https://ssl.example.com/lib.js' // `src` to load if the protocol is `https:`
}

You can also pass in a callback that will be called when the script loads with err, event.