Detailed explanation of jQuery using element attribute attr assignment_jquery

Copy code The code is as follows:

1.$("Element").attr(name) 'Get the first matching attribute value, such as $("img").attr("src")
2.$("Element".attr(key,value)") 'Set attributes for a certain element
3.$("Element".attr({key:value,key1:value,....})) 'Set multiple attributes for an element at once
4.$("Element").attr(key,function) 'Set a calculated attribute value for all matching elements.
5.$("Element").removeAttr(name)//Remove an attribute

jQuery code:

Copy code The code is as follows:

$("img").attr("src");

Parameter properties description:

Set src and alt attributes for all images.

jQuery code:

Copy code The code is as follows:

$("img").attr({ src: "test.jpg", alt: "Test Image" });

Parameter key, value description:

Set the src attribute for all images.

jQuery code:

Copy code The code is as follows:

$("img").attr("src","test.jpg");

Parameter key, callback function description:

Set the value of the src attribute to the value of the title attribute.

jQuery code:

Copy code The code is as follows:

$("img").attr("title", function() { return this.src });

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