Native: Element

Custom class to allow all of its methods to be used with any Selectors element via the dollar function $.

Element Property: getElements

Gets all the elements within an element that match the given selector.

Синтаксис:

var myElements = myElement.getElements(selector);

Аргументы:

1. selector - (string) The CSS Selector to match.

Возвращает:

• (array) An Element collection.

Примеры:

//Returns all anchors within myElement.
$('myElement').getElements('a');
 

//Returns all input tags with name "dialog".
$('myElement').getElements('input[name=dialog]');
 
//Returns all input tags with names ending with 'log'.
$('myElement').getElements('input[name$=log]');

 
//Returns all email links (starting with "mailto:").
$('myElement').getElements('a[href^=mailto:]');
 
//Adds events to all Elements with the class name 'email'.
$(document.body).getElements('a.email').addEvents({

    'mouseenter': function(){
        this.href = 'real@email.com';
    },
    'mouseleave': function(){

        this.href = '#';
    }
});

Notes:

• Supports these operators in attribute selectors:

  • '=' : is equal to
  • '^=' : starts-with
  • '$=' : ends-with
  • '!=' : is not equal to

Element Property: getElement

Same as Element:getElements, but returns only the first.

Синтаксис:

var anElement = myElement.getElement(selector);

Аргументы:

1. selector - (string) The CSS Selector to match.

Возвращает:

• (mixed) An extended Element, or null if not found.

Пример:

var found = $('myElement').getElement('.findMe').setStyle('color', '#f00');

Selectors.Pseudo

Some default Pseudo Selectors for Selectors.

Смотрите также:

• W3C Pseudo Classes

Selector: enabled

Matches all Elements that are enabled.

Usage:

':enabled'

Примеры:

$$('*:enabled')

 
$('myElement').getElements(':enabled');

Selector: empty

Matches all elements which are empty.

Usage:

':empty'

Пример:

$$('div:empty');

Selector: contains

Matches all the Elements which contains the text.

Usage:

':contains(text)'

Variables:

• text - (string) The text that the Element should contain.

Пример:

$$('p:contains("find me")');

Selector: nth-child

Matches every nth child.

Usage:

Nth Expression:

':nth-child(nExpression)'

Variables:

• nExpression - (string) A nth expression for the "every" nth-child.

Примеры:

$$('#myDiv:nth-child(2n)'); //Returns every even child.
 
$$('#myDiv:nth-child(n)'); //Returns all children.

 
$$('#myDiv:nth-child(2n+1)') //Returns every odd child.
 
$$('#myDiv:nth-child(4n+3)') //Returns Elements 3, 7, 11, 15, etc.

Every Odd Child:

':nth-child(odd)'

Every Even Child:

':nth-child(even)'

Only Child:

':nth-child(only)'

First Child:

'nth-child(first)'

Last Child:

'nth-child(last)'

Note:

This selector respects the w3c specifications, so it has 1 as its first child, not 0. Therefore nth-child(odd) will actually select the even children, if you think in zero-based indexes.

Selector: even

Matches every even child.

Usage:

':even'

Пример:

$$('td:even');

Note:

This selector is not part of the w3c specification, therefore its index starts at 0. This selector is highly recommended over nth-child(even), as this will return the real even children.

Selector: odd

Matches every odd child.

Usage:

':odd'

Пример:

$$('td:odd');

Note:

This selector is not part of the w3c specification, therefore its index starts at 0. This selector is highly recommended over nth-child(odd), as this will return the real odd children.

Selector: first

Matches the first child.

Usage:

':first-child'

Пример:

$$('td:first-child');

Selector: last

Matches the last child.

Usage:

':last-child'

Пример:

$$('td:last-child');

Selector: only

Matches an only child of its parent Element.

Usage:

':only-child'

Пример:

$$('td:only-child');