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blazing fast CSS1, CSS2 query selector engine

Package Exports

  • qwery

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (qwery) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Q('wery') - The Tiny Selector Engine

Qwery is a 1k blazing fast query selector engine allowing you to select elements with CSS1 & CSS2 selectors (including attribute selectors).

Acceptable queries

basic
#foo {} id
.bar {} class
#foo a {} descendents
#foo a.bar {} element attribute combination

attributes
#foo a[href] {} simple
#foo a[href=bar] {} attribute values
#foo a[href^="http://"] {} attribute starts with
#foo a[href$=com] {} attribute ends with
#foo a[href*=twitter] {} attribute wildcards
#foo a[lang|=en] {} subcodes

combos
div,p {}

variations
#foo.bar.baz {}
div#baz.thunk a[-data-info*="hello world"] strong {}
#thunk[title$='huzza'] {}

Contexts

Each query can optionally pass in a context

qwery('div', node); // existing DOM node or...
qwery('div', '#foo'); // another query

Browser Support

Qwery attempts to stay up to date with Yahoo's Grade A Browser Support in addition to future browser candidates.

  • IE6, IE7, IE8, IE9
  • Chrome 1 - 11
  • Safari 3, 4, 5
  • Firefox 2, 3, 4, 5, Aurora
  • Opera

Tests

$ open tests/index.html

Note

Qwery uses querySelectorAll when available. All querySelectorAll default behavior then applies.

Ender support

Qwery is the recommended selector engine for Ender. If you don't have Ender, install it, and don't ever look back.

$ npm install ender -g

To include Query in a custom build of Ender you can include it as such:

$ ender -b qwery[,mod2,mod3,...]

Or add it to an existing Ender installation

$ ender add qwery

Ender bridge additions

Assuming you already know the happs on Ender -- Qwery provides some additional niceties when included with Ender:

// the context finder - find all p elements descended from a div element
$('div').find('p')

// join one set with another
$('div').and('p')

// element creation
$('<p>hello world</p>'); // => [HTMLParagraphElement "hello world"]

In most cases, if you're hunting for a selector engine, you probably want to pair Qwery with a DOM module. In that case qwery pairs quite nicely with Bonzo (a DOM util) and Bean (an event util). Add them to your Ender installation as such:

$ ender -b qwery bonzo bean

Then write code like a boss:

$('a.boosh')
  .css({
    color: 'red',
    background: 'white'
  })
  .after('√')
  .bind({
    'click.button': function () {
      $(this).hide().unbind('click.button');
    }
  });

Qwery Mobile!

If you're building a Webkit (iPhone / Android / Chrome OS) application, you may be interested in qwery-mobile! Include this (instead of qwery) in your Ender build and get a full qwery interface for just 600 bytes :)

$ ender add qwery-mobile

Contributors