带逗号的Jquery输入数字

Question

我在jquery中有一种奇怪的行为。

我想获取输入字段的值（类型编号）。用一个例子来展示它会更容易。

当值包含逗号时，函数会返回空字符串。

$("#input[type='number']").on('change',function() {
            alert($(this).val());
        });

为什么？

提前致谢

Answer 1

HTML5＆＃39; spec不允许使用逗号：

value = floating-point number
   A string representing a number

floating-point numbe R：

A floating-point number consists of the following parts, in exactly the following order:

    1. Optionally, the first character may be a "-" character.
    2. One or more characters in the range "0—9".
    3. Optionally, the following parts, in exactly the following order:
        1. a "." character
        2. one or more characters in the range "0—9"
    Optionally, the following parts, in exactly the following order:
        1. a "e" character or "E" character
        2. optionally, a "-" character or "+" character
        3. One or more characters in the range "0—9".

Answer 2

将此添加到输入：step =“0.01”

如下所示：

<input type="number"  step="0.01" />

然后0.10将有效，如果您的操作系统使用以逗号分隔的小数，我不确定逗号是否会被视为有效。