Event.currentTarget - Web APIs 编辑
The currentTarget read-only property of the Event interface identifies the current target for the event, as the event traverses the DOM. It always refers to the element to which the event handler has been attached, as opposed to Event.target, which identifies the element on which the event occurred and which may be its descendant.
Syntax
var currentEventTarget = event.currentTarget;
Value
Examples
Event.currentTarget is interesting to use when attaching the same event handler to several elements.
function hide(e){
e.currentTarget.style.visibility = 'hidden';
console.log(e.currentTarget);
// When this function is used as an event handler: this === e.currentTarget
}
var ps = document.getElementsByTagName('p');
for(var i = 0; i < ps.length; i++){
// Console: print the clicked <p> element
ps[i].addEventListener('click', hide, false);
}
// Console: print <body>
document.body.addEventListener('click', hide, false);
// Click around and make paragraphs disappear
Note: The value of event.currentTarget is only available while the event is being handled. If you console.log() the event object, storing it in a variable, and then look for the currentTarget key in the console, its value will be null. Instead, you can either directly console.log(event.currentTarget) to be able to view it in the console or use the debugger statement, which will pause the execution of your code thus showing you the value of event.currentTarget.
Specifications
Browser compatibility
BCD tables only load in the browser
See also
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