How to close JavaScript quickly

Most people don't quite understand how this JavaScript can quickly close the article, so Xiaobian summarizes the following contents, which are detailed and clear, and have certain reference value. I hope everyone can gain something after reading this article. Let's take a look at how this JavaScript can quickly close the article.

First of all, using the standard shortcut key Alt+F4 to close the window will trigger the closing event of the browser or operating system, which means that some browsers may prompt the user whether to save changes or close all tabs, and these pop-ups will have a negative impact on the user experience.

Secondly, in some cases, the operation of closing the window is not what the user wants to see. For example, in some web applications developed by using JavaScript, it may be necessary to perform some operations on the interface or data when the user tries to close the window, such as prompting the user to save or leave the page, popping up advertisements or confirmation boxes. If the close event is triggered directly, these operations cannot be completed, which will bring unnecessary troubles to users.

So, how to close the current window with JavaScript without triggering the closing event of the browser or operating system?

Here are two methods:

Use the window.close () method.

The window.close () method is a method used in JavaScript to close the current window or tab. Unlike Alt+F4, it does not trigger the closing event of the browser or operating system, but directly closes the current window.

Sample code:

Close the window

Custom shutdown event

Another method is to use a custom close event. When a user tries to close a window, he or she performs a custom operation first, and then closes the window. In this way, some necessary operations can be completed before closing the window, and at the same time, the closing event of the browser or operating system can be avoided.

Sample code:

window.onbeforeunload = function(){ //Perform the operations that need to be completed here, such as prompting the user to save or leave the page, popping up an advertisement or a confirmation box, etc.   //  ... //Then a prompt string is returned to make the browser pop up a confirmation box to let the user confirm whether to leave the current page. Return "Please confirm whether to leave the current page"; }

It should be noted that the custom closing event will only trigger when the user tries to close the window. If the window is closed in other ways (such as clicking a link to jump or using other shortcut keys), it will not trigger the event.

These two methods can be flexibly used in different development scenarios and can be selected according to actual needs.

The above is about how JavaScript can quickly close this article. I believe that everyone has a certain understanding. I hope that the content shared by Xiaobian will be helpful to everyone. If you want to know more about the relevant knowledge, please pay attention to the Yisu Cloud Industry Information Channel.