After a button click event is bound with jquery, everything works after the first click. The second click actually runs twice, and more

After a button click event is bound with jquery, everything works after the first click. The second click actually runs twice, and more will be performed in the future.

Later, I checked the document and found thatJquery click is not to replace the original function, but to add, So the number of executions increases.

In this case, you can unbind the click event before binding it again.

Rebind partCode:

$ ('# BTN'). Unbind ('click'); $ ('# BTN'). Unbind ('click', function () {alert ('only prompts once! ');});

Address: http://blog.csdn.net/wangzhe_90228/article/details/7642163