disable enter key on page, but NOT in textarea

问题:

Found this script:

function stopRKey(evt) {
  var evt = (evt) ? evt : ((event) ? event : null);
  var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
  if ((evt.keyCode == 13) && (node.type=="text"))  {return false;}
}

document.onkeypress = stopRKey;

Only issue, it also stops enter key being used in textarea. Which is a hassle.

I have toyed with using: onkeypress="return handleEnter(this, event)"

But our forms are extremely complex, and I am looking for a cleaner way of doing things.

回答1:

You need to check the nodeName or tagName of the event target here, like this:

if (evt.keyCode == 13 && node.nodeName != "TEXTAREA") { return false; }

---

I noticed after this was accepted that you are already using jQuery, you can just replace all your code above with this:

$(document).keypress(function (e) {
  if(e.which == 13 && e.target.nodeName != "TEXTAREA") return false;
});

回答2:

I think you can just change this line

if (evt.keyCode == 13 && node.type == "text") {
  return false;
}

to

if (evt.keyCode == 13 && node.type != "TEXTAREA") {
  return false;
}

回答3:

If you use jquery (highly recommended) then this will automatically add the function to allow use of the enter key:

$("textarea").focus(function () { 
     $(this).keypress(handleEnter);
});