将type = number的输入设置为空白是否合法

Question

假设我有<input id="inpID" type="number" min="1" max="5" value="3"></input>

这段代码是否合法：

$("#inpID").val('');

并且它在不同的环境/浏览器中实际运作吗？

Answer 1

从这里采取：http://www.w3.org/TR/html5/forms.html#number-state-(type=number)

If the element is mutable, the user agent should allow the user to change the number represented by its value, as obtained from applying the rules for parsing floating-point number values to it. User agents must not allow the user to set the value to a non-empty string that is not a valid floating-point number.

我读到的是，是的，可以使用空字符串。