[英]ng-pattern that allows decimal ratios
I'm having an ng-pattern
that validates for a ration like 4:6 as shown below: 我有一个
ng-pattern
可以验证4:6之类的定量,如下所示:
ng-pattern="/^(\d+):(\d+)$/"
I want also to validate if decimal numbers are entered as rations along with the above validation.Example :5.4:7.1 I trid by giving ng-pattern
as 我还想验证十进制数字是否与上述验证一起作为口粮输入。例如:5.4:7.1我尝试通过给
ng-pattern
作为
ng-pattern="/^(\.[0-9]{1,2}+):(\.[0-9]{1,2}+)$/"
But not triggering the validation.Please suggest me where I'm going wrong.. 但不要触发验证。请向我建议我要去哪里了。
Your ^(\\.[0-9]{1,2}+):(\\.[0-9]{1,2}+)$
is not a valid pattern in JS as the limiting quantifier {min,max}
cannot be followed with +
(no possessive quantifiers are supported by JS regex engine). 您的
^(\\.[0-9]{1,2}+):(\\.[0-9]{1,2}+)$
在JS中不是有效的模式,作为限制量{min,max}
不能用+
跟随(JS正则表达式引擎不支持所有格量词)。 Even if you remove the pluses and use ^(\\.[0-9]{1,2}):(\\.[0-9]{1,2})$
, the pattern would match strings like .1:.3
or .34:.45
and would not allow 3:45
(dots would be obligatory). 即使删除加号并使用
^(\\.[0-9]{1,2}):(\\.[0-9]{1,2})$
,该模式也将匹配.1:.3
字符串.1:.3
或.34:.45
,不允许3:45
(点是必填项)。
Use the following regex if you want to allow values like .5
: 如果要允许
.5
值,请使用以下正则表达式:
ng-pattern="/^\d*\.?\d+:\d*\.?\d+$/"
See the regex demo . 参见regex演示 。
Alternatively, you may use 或者,您可以使用
ng-pattern="/^(\d+\.)?\d+:(\d+\.)?\d+$/"
to only allow numbers with non-empty integer part. 只允许包含非空整数部分的数字。 See this regex demo .
请参阅此正则表达式演示 。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.