jQuery keypress()事件获取文本 [英] jquery keypress() event get text

问题描述

我希望在文本框上发生按键操作时运行一个函数，所以我有以下代码:

I want a function to be run when a keypress occurs on a text box, so I have this code:

$("input[x]").keypress(function() {
        DoX();
    })

这很好，但是在我的函数中，我想根据文本框中的文本值来做某事

This is working fine, but in my function I want to do something based on the text value in the textbox

var textValue = ("input[x]").val();

现在这里的问题是它落后于键，因此如果我的文本框显示"He"并且我键入"l"，那么我希望我的textValue是"Hel"，但它会返回先前的值他"，因为可能尚未将字符放入文本框中.

Now the problem here is that it lags behind by a key so if my text box says 'He' and I type an 'l', then I want my textValue to be 'Hel', but it is returning the previous value 'He' because presumably the character hasn't been put in the text box yet.

有没有办法让"Hel"脱离我的功能?

Is there a way of getting 'Hel' out of my function here?

谢谢:)

推荐答案

您可以尝试使用keyup事件:

You can try to use the keyup event:

$(selector).keyup(function() {
  var textValue = $(this).val();
  DoX();
});

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