如何在javascript中复制和粘贴keydown事件。 [英] how to copy and paste on keydown event in javascript.
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问题描述
Hello Team,
我在KeyDown活动的javascript中有以下代码。
Hello Team,
I have the code as follow in javascript on KeyDown Event.
function keyPressFunctionForValidations(e) {
debugger;
var charCode = (e.which) ? e.which : e.keyCode
switch (e.type) {
case 'keydown':
if (e.ctrlKey == true && (charCode == 118 || charCode == 86)) {
e.preventDefault();
return;
}
var isValid = (charCode >= 37 && charCode <= 40) || (charCode >= 65 && charCode <= 90) || charCode == 32 || charCode == 46 || charCode == 8 || charCode == 9 || charCode == 67 || charCode == 86 || charCode == 17;
if (isValid == false) {
e.preventDefault();
return;
}
break;
case 'paste':
e.preventDefault();
return;
break;
}
}
i have the paste function as follow
function validateOnPaste(e) {
debugger;
var theEvent = e || window.event;
var key = theEvent.keyCode || theEvent.which;
key = String.fromCharCode(key);
var regex = /[a-zA-z]|\s/;
if (!regex.test(key)) {
e.preventDefault();
return;
}
}
现在我想在文本框上执行一项任务
i想要通过keydown事件使用javascript keycode复制和粘贴文本框中的值。
我应该如何获得它?
谢谢
HArshal Raut
Now i want to perform one task on textbox that is
i want to copy and paste the values in textbox through keydown event using javascript keycode.
How should i get it?
Thanks
HArshal Raut
推荐答案
您可以轻松检测到复制,粘贴和使用 jQuery 剪切。
参考 - 如何使用JQuery检测复制,粘贴和剪切行为 [ ^ ]
You can easily detect Copy, Paste and Cut using jQuery.
Refer - How To Detect Copy, Paste And Cut Behavior With JQuery[^]
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