Act on jQuery elements only once.
Filters out all elements that had the same filter applied on them before. It can be used to ensure that a function is only applied once to an element.
| Method | Installation |
|---|---|
| npm | npm install jquery-once --save |
| Composer | composer require jquery-once |
| Bower | bower install jquery-once |
| Component | component install RobLoach/jquery-once |
| jsDelivr | //cdn.jsdelivr.net/jquery.once/2.0.2/jquery.once.min.js |
| cdnjs | //cdnjs.cloudflare.com/ajax/libs/jquery-once/2.0.2/jquery.once.js |
See the API documentation for more information on how to use jQuery Once.
// The following will change the color of each paragraph to red, just once
// for the "changecolor" key.
$('p').once('changecolor').css('color', 'red');
// .once() will return a set of elements that yet to have the once ID
// associated with them. You can return to the original collection set by
// using .end().
$('p')
.once("changecolorblue")
.css("color", "blue")
.end()
.css("color", "red");
// To execute a function on the once set, you can use jQuery's each().
$('div.calendar').once().each(function() {
// Since there is no once ID provided here, the key will be "once".
});- Ensure you are using node >= 4.1.1:
node --version
- Install dependencies through npm:
npm install
- Check coding style standard, and automated testing:
npm test
- Build
jquery.once.min.jswith:
npm run build
- Update API documentation:
npm run docs
- Tag and publish the new versions to npm with Semantic Versioning:
git tag 2.1.0
git push origin 2.1.0
npm publish
Discover the change history by heading on over to the CHANGELOG.md file.
Dual licensed under:
- GPL-2.0
- the incredibly permissive MIT license
Copyright © Rob Loach