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This article mainly explains "how to cancel the click event in javascript". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn how to cancel the click event in javascript.

Javascript method to cancel the click event: if it is an event bound by onclick, you can delete the event handler to implement the cancel click event, such as [btn.onclick=null;].

This article operating environment: windows10 system, javascript 1.8.5, thinkpad T480 computer.

We know that events are divided into DOM0 level and DOM2 level in javascript, and if they are bound by onclick, we can delete the event handler to cancel the click event.

Btn.onclick=null;// delete event handler

If you add an event using the addEventListener () method, you can remove the event through removeEventListener (). There are two things to note:

1. The third parameter of removeEventListener () must be the same as the third parameter of the addEventListener () method.

2. Anonymous functions added through the addEventListener () method cannot be removed.

Btn.aaddEventListener ('click',function () {alert (1);}, false); btn.removeEventListener (' click',function () {alert (1);}, false); / / useless!

AaddEventListener and removeEventListener seem to pass in the same parameter, but in fact the second parameter of removeEventListener is a completely different function from the second parameter of aaddEventListener!

If you want to move out, you have to:

Var fn=function () {alert (1);}; btn.aaddEventListener ('click',fn,false); btn.removeEventListener (' click',fn,false); / / effectively thank you for your reading, the above is the content of "how to cancel the click event in javascript". After the study of this article, I believe you have a deeper understanding of how to cancel the click event in javascript, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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