如何使用回车键为事件处理（JavaScript的）？ [英] How do I use the Enter key as an event handler (javascript)?

问题描述

我尝试让我自己的聊天...所以我有一个输入文本字段，提交按钮，甚至没有提交，它只是一个按钮....所以当进入关键是pressed，我需要输入字段的值出现在我的textarea（这是只读）...

im trying to make my own chat... so i have an input text field, the submit button, isn't even submit, its just a button.... so when the enter key is pressed, i need the value of the input field to appear in my textarea (which is readonly)...

关注一下..让长话短说，我只想要一个基本的回车键的事件处理程序，我知道它完美地与提交按钮CUS你不需要任何东西程序，它的默认值。但我的按钮类型=按钮......所以，当你preSS进入没有任何反应...我如何引发我的按钮由pressing进入？

well look.. make long story short, i just want a basic enter key event handler, i know it works perfectly with submit buttons cus you don't need to program anything at all, its default. but my button is type="button" .... so when you press enter nothing happens... how do i trigger my button by pressing enter?

推荐答案

您可以使burron方式提出，也可以使用onkeyup事件处理程序，并检查重点code 13（<一个href=\"http://www.cambiaresearch.com/c4/702b8cd1-e5b0-42e6-83ac-25f0306e3e25/Javascript-Char-$c$cs-Key-$c$cs.aspx\">http://www.cambiaresearch.com/c4/702b8cd1-e5b0-42e6-83ac-25f0306e3e25/Javascript-Char-$c$cs-Key-$c$cs.aspx有重点codeS）的列表。你必须知道如何从事件的关键code。

You could make the burron type submit, or you can use the onkeyup event handler and check for keycode 13 (http://www.cambiaresearch.com/c4/702b8cd1-e5b0-42e6-83ac-25f0306e3e25/Javascript-Char-Codes-Key-Codes.aspx has a list of key codes). You'll have to know how to get the keycode from the event.

编辑：一个例子

HTML

<input onkeyup="inputKeyUp(event)" ...>

普通的JavaScript：

Plain javascript:

function inputKeyUp(e) {
    e.which = e.which || e.keyCode;
    if(e.which == 13) {
        // submit
    }
}

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