Javascript 一旦发生，如何禁用 onclick 事件？
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How to disable the onclick event once it happens?
提问by Rajasekar
I had a image which calls add_cart()JavaScript function when onclick()
我有一个图像调用add_cart()JavaScript 函数时onclick()
<img src="images/add.png" onclick="add_cart()">
I want the user to click the image only one time. When the user clicks it first time, add_cartfunction should be called. If he clicks second time no event should happen.
我希望用户只单击一次图像。当用户第一次点击它时，add_cart函数应该被调用。如果他第二次点击，则不会发生任何事件。
采纳答案by igaurav
If you are dealing this on jquery side,you can use jquery onemethod
如果你在 jquery 端处理这个，你可以使用 jqueryone方法
$(".myDiv").one("click", function(){
alert("this will happen only once");
});
Cheers
干杯
回答by Anurag
<img src="images/add.png" onclick="add_cart(); this.onclick=null;">
回答by Bang Dao
Using
使用
<img src="images/add.png" onclick="this.onclick = function(){};add_cart();">
回答by Maxim Manco
window.onload = function() {
document.getElementById('myImageId').onclick = handleImageClick;
}
var handleImageClick = function(e) {
var target;
if (!e) var e = window.event;
if (e.target) targ = e.target;
else if (e.srcElement) targ = e.srcElement;
if (targ.nodeType == 3) // defeat Safari bug
targ = targ.parentNode;
if(target) {
target.onclick = function(){}
// do your stuff here
}
}
