jQuery javascript防止keyup的默认设置
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javascript prevent default for keyup
提问by Ryan King
I have the following code:
我有以下代码：
$(document).on('keyup', 'p[contenteditable="true"]', function(e) {
if(e.which == 13) {
e.preventDefault();
$(this).after('<p contenteditable = "true"></p>');
$(this).next('p').focus();
} else if((e.which == 8 || e.which == 46) && $(this).text() == "") {
e.preventDefault();
alert("Should remove element.");
$(this).remove();
$(this).previous('p').focus();
};
});
I would like to prevent the default action when a key is pressed. preventDefaultworks for keypressbut not keyup. Is there a way to prevent the defualt for $(document).on('keyup')?
我想在按下某个键时阻止默认操作。preventDefault适用于keypress但不适用keyup。有没有办法防止默认$(document).on('keyup')？
回答by Norguard
No. keyupfires after the default action.
No.keyup在默认操作后触发。
keydownand keypressare where you can prevent the default.
If those aren't stopped, then the default happens and keyupis fired.
keydown并且keypress是您可以阻止默认值的地方。
如果这些没有停止，则默认发生并被keyup触发。
回答by SivaRajini
We can prevent the action by using following code snippet.
我们可以使用以下代码片段来阻止该操作。
e.stopPropagation();
e.preventDefault();
e.returnValue = false;
e.cancelBubble = true;
return false;
keyup fires after keydown/keypress. we can prevent default action in anyone of those events.
keyup 在 keydown/keypress 之后触发。我们可以防止任何这些事件中的默认操作。
Thanks,
谢谢，
Siva
湿婆
