jQuery 如何只允许 shift+enter 在文本区域中返回新行？

How can I only allow shift+enter to return new line in text area?

提问by DNB5brims

In a default behavior, the textarea "press" enter will become new line, but I don't want to having a new line, I want the user press "shift+enter", instead. How can I do so? or... ...can I return the textarea enter event before it actually fire to the text area?? Thank you.

在默认行为中，文本区域“按下”回车将成为新行，但我不想换行，我希望用户按下“shift+enter”。我怎么能这样做？或者... ...我可以在 textarea enter 事件真正触发到文本区域之前返回它吗？谢谢你。

回答by BrunoLM

$("textarea").keydown(function(e){
    // Enter was pressed without shift key
    if (e.keyCode == 13 && !e.shiftKey)
    {
        // prevent default behavior
        e.preventDefault();
    }
});

Try the jsFiddle.

试试jsFiddle。