load.js is a micro JS lazy-loader

Built on top of chain.js, it allows you to lazy load your JS scripts sequentially or in parallel and handle complex dependency chains.

Example

load('jquery.js').then('jquery-ui.js', 'jquery-ui-theme.js').then('myscript.js').thenRun(function () {
    alert('Loaded.');
});

load('underscore.js');

Some things to note:

• then() is an alias for the previous method in the chain
• once jQuery has loaded, jquery-ui.js and jquery-ui-theme.js are loaded in parallel. When both are complete, myscript.js is loaded
• each chain is separate, so underscore and jQuery will load in parallel

Example 2

Load a script after a 0.5s delay

defer(500).thenLoad('myscript2.js');

Example 3

load('myscript2.js').onError(function (err) {
    //Handle any errors here..
});

For more examples of the available methods, see the chain.js page

Contributors

• Susmitha Girumala - added the initial Jasmine tests

License

(MIT License)

Copyright (c) 2010 Chris O'Hara cohara87@gmail.com

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.