关于jQuery object and DOM element_jquery-JS Tutorial-php.cn

关于jQuery object and DOM element_jquery

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Release： 2016-05-16 17:37:01

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Copy code The code is as follows:

& lt;/div & gt;

Want to get text in span elements, find $ ("#test1 span") [0]. ("#test1 span")[0]).text() was converted to jQuery and then retrieved, but the two $ together always felt weird, so the next best thing was to use the value$("#test1 span") [0].textContent or $("#test1 span")[0].innerHTML jQuery object and DOM elementjQuery object is an array-like object that can contain one or more DOM element(s). The operations of jQuery functions are based on jQuery object rather than DOM object. eg. jQuery object “Object[span, span, span]” contains one or more DOM elements “”. The way to access the DOM element in jQuery object:

Copy the code The code is as follows: $(" selector")[0] // Accesses the first DOM element in this jQuery object

$("selector").get(0) // Equivalent to the code above

$("selector").get( ) // Retrieve a true array of DOM elements matched by this selector

 or non-jQuery way:

Copy code The code is as follows:document.getElementsByTagName("div") // Return HTMLcollection

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关于jQuery object and DOM element_jquery