What are the commonly used methods to obtain attributes in jquery?

The commonly used methods for obtaining attributes in jquery are: 1. attr() method, which can obtain and return the value of the specified attribute. The syntax is "$(selector).attr("attribute name")"; 2. prop( ) method, which can return the attribute value of the selected element, the syntax is "$(selector).prop("property name")".

The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.

There are two commonly used methods for obtaining attributes in jquery:

• attr() method

• prop() method

jquery attr() method

attr() method sets or returns the attribute value of the selected element.

Example: Get the value of the width attribute of the img element

      
   
 返回图像的宽度  

##jquery prop() method## The #prop() method sets or returns the properties and values of the selected element.

When this method is used to return an attribute value, the value of the first matching element is returned.

Example:

      
   
 返回图像的宽度  

prop() method and attr( ) methods are similar, both are used to get or set the HTML attributes of elements, but there are essential differences between the two.

jQuery official recommendation: For attributes with two values of true and false, such as checked, selected, disabled, etc., it is recommended to use the prop() method to operate, while for other attributes it is recommended to use the attr() method. to operate.

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,web front-end development]

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