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Today, I would like to share with you the relevant knowledge of what ajaxSend is. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

.ajaxSend (handler (event, jqXHR, ajaxOptions))

Description: bind a function to be executed before the Ajax request is sent, which is an Ajax Event.

Whenever an Ajax request is about to be sent, jQuery triggers the ajaxSend event, and at this point all handlers are registered and executed using the .ajaxSend () method.

Observe this method and establish a basic Ajax load request:

Trigger

Bind event handlers on document:

$(document) .ajaxSend (function () {

$(".log") .text ("Triggered ajaxSend handler.")

})

Now we can use any jQuery method to build an Ajax request:

$(".trigger") .click (function () {

$(".result") .load ("ajax/test.html")

})

This message will be displayed when we click on the element where class is trigger and the Ajax request is about to begin.

But since jQuery 1.8, the .ajaxSend () method can only be bound to document elements.

Note that this paragraph has been deleted from the original text on the official website: because .ajaxComplete () is executed as a jQuery object instance method, we can use the this keyword as the specified element in the callback function.

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