如何避免输入类型编号中的十进制值 [英] How to avoid Decimal values in input type number

问题描述

如何避免HTML5中Number输入中的小数.目前，它允许用户键入十进制值.

How to avoid Decimal values from input of Number in HTML5. Currently it allows user to type decimal value.

推荐答案

提供的答案的另一种方法是在输入时监视按键.我个人喜欢将type="number"保留为属性.这是 JSFiddle

An alternative to the supplied answers is to monitor the keypress while in the input. I personally like leaving the type="number" as an attribute. Here's a JSFiddle

<form action="#" method="post">
  Numbers: <input name="num" 
                  type="number"
                  min="1"
                  step="1"
                  onkeypress="return event.charCode >= 48 && event.charCode <= 57"
                  title="Numbers only">
  <input type="submit">
</form>

这篇关于如何避免输入类型编号中的十进制值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！