Javascript 如何在textarea上捕获输入键而不是shift + enter？
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How to catch enter keypress on textarea but not shift+enter?
提问by rsk82
I'm doing it for texarea. A function should be called when the user press Enter, but nothing should be done when Shift+ Enterbe pressed.
我正在为 texarea 做这件事。当用户按下时应该调用一个函数Enter，但按下Shift+时什么都不做Enter。
I try to simulate here a feature that many IM communicators have: sending a message on Enterbut also adding multiple lines using Shift+ Enter.
我尝试在这里模拟许多 IM 通信器具有的功能：发送消息Enter但也使用Shift+添加多行Enter。
回答by aorcsik
Test for the enter keycode (13) and if shift key was pressed.
测试输入键码 (13) 以及是否按下了 shift 键。
...onkeyup = function(e) {
if (e.keyCode == 13)
{
// if (e.shiftKey === true)
if (e.shiftKey) // thruthy
{
// new line
}
else
{
// run your function
}
return false;
}
}
Edit:Accept all truthy values of e.shiftKey
编辑：接受所有真实值e.shiftKey
回答by ic3b3rg
element.onkeydown = function(o) {
o = o || event;
if (o.shiftKey && o.keyCode == 13) {
/* shift + enter pressed */
}
}
回答by nickytonline
I believe you need a keydown event as well to check for the SHIFT key, http://www.quirksmode.org/js/keys.html
我相信您还需要一个 keydown 事件来检查 SHIFT 键，http://www.quirksmode.org/js/keys.html
回答by ADW
Look at the shiftKey property of the event object which will tell you if shift was held while the key was pressed.
查看事件对象的 shiftKey 属性，它会告诉您按下键时是否按住了 shift。
