在keyCode =="enter"上提交表单(13)

问题描述：

当我按下 Enter 键时，我需要提交表单的内容，但前提是该表单没有错误消息.我建立了以下功能:

I need to submit the content of a form when I press the Enter key, but only if the form has no error message. I built up the following function:

$(targetFormID).submit(function (e) {
    var mess = error_m(targetDiv);
    if (e.keyCode == 13 && mess.length > 0) {
        e.preventDefault();
        e.stopPropagation();
    }
    if (mess.length == 0 && e.keyCode == 13) $(targetFormID).submit();
});

在此函数中，mess变量获取函数error_m返回的错误消息，其余的只是简单的代码处理，但无效.

In this function the mess variable is getting the error message returned by function error_m, the rest is simple code condtion but it doesn't work.

需要一些帮助！

答

当按下 Enter 键时提交表单是默认的浏览器行为.不要惹它.只需在submit事件中验证表单即可.

Submitting the form when the Enter key is pressed is default browser behaviour. Don't mess with it. Just validate the form in the submit event.

$(targetFormID).submit(function (e) {
    var mess = error_m(targetDiv);
    if (mess.length > 0) {
        e.preventDefault();
    }
});

另一个可能的问题:什么是targetFormID?如果实际上是包含元素ID的字符串，则需要

One other possible problem: what is targetFormID? If it's actually a string containing an element ID, you'll need

$("#" + targetFormID).submit(/* Same function as above */);

如果它是对form元素的引用，则$(targetFormID)很好，但是您的变量的名称具有误导性.

If it's a reference to the form element then $(targetFormID) is fine but your variable is misleadingly named.

在keyCode =="enter"上提交表单(13)

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