Disabling Jquery click() event - Stack Overflow

Question

{Code...} {Code...} When I click the B button and call toggleMenu(), the class value of the element is changed. I think the click event in ready() should be invalid. When I call toggleMenu() ), replace the value of class with the initial value, and click() should run normally; but it doesn't...

我想大声告诉你 · Answer

When I clicked button B and called toggleMenu() to change the class value of the element, I felt that the click event in ready() should be invalid

First of all, this understanding is wrong.

Give me an example:

There was a man named Xiao Ming. His parents called him Xiao Mingming, and his wife called him Da Mingming. One day, Xiao Ming’s hand was broken.
His parents saw it and asked: Xiao Mingming, how did you break your hand? ?
His wife said: Da Mingming accidentally cut it while cooking
He turned around and asked Xiao Ming: Husband, do your hands still hurt?
Dad/Mom said: Hey, they are so big Why do you still call me Da Mingming when you are dead? It doesn’t sound good
My wife said: Okay, I won’t call you Da Mingming anymore

Question: Is Xiao Ming’s hand broken?

jQuery’s selector is used to select elements through different means,
but the shanghai you cause to it will not be eliminated just because you change one of its attributes.

So back to the topic, the click event is bound to the element and needs to be cleared

1. 如果是js绑定:
ele.onclick = function(){...}
//要清除的话 , 用空方法覆盖
ele.onclick = function(){}

2. jQuery on方法绑定的点击事件
//用off解除绑定
$ele.on("click", function(){})
$ele.off("click", function(){})

3.或者在点击事件的回调中判断状态(全局变量/flag)
var flag = true;
$ele.on("click", function(){
  if(flag){
  ... 
  }
});
function toggle(){
  flag = !flag;
}

PHP中文网 · Answer

The examples mentioned above are also interesting. To put it simply, the binding of events is only related to the element itself, and has little to do with its name in the future. It's like saying that your ID card represents you as a person, and then one day you change your name, does the ID card represent someone else? That’s the truth

女神的闺蜜爱上我 · Answer

$(".menua1").off('click'), wouldn't it be enough to unbind the click event of the button