javascript 文本框值只允许使用 ng-pattern 的小数和数字？
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Textbox value to allow only decimals and numbers using ng-pattern?
提问by Aravind E
In my code I need to allow decimals and integers. How can I check this using ng-pattern?
在我的代码中，我需要允许小数和整数。我如何使用ng-pattern?
example code
示例代码
my test cases
我的测试用例
1)22 = pass,
1)22 = 通过，
2)22.5 = pass,
2)22.5 = 通过，
3)2a = fail,
3)2a = 失败，
4)@#@ = fail
4)@#@ = 失败
回答by Joe Lloyd
ng-patterntakes a string.
ng-pattern需要一个字符串。
The string is regex so give this a shot
字符串是正则表达式所以试一试
/^[0-9]+([,.][0-9]+)?$/;
It allows decimal and whole numbers.
它允许小数和整数。
To check it works properly I pasted it into this
为了检查它是否正常工作，我将其粘贴到此
You can also use it to check any modifications you would like to add.
您还可以使用它来检查要添加的任何修改。
Also as Tushar said you could have this
同样正如 Tushar 所说，你可以拥有这个
/^\d+([,.]\d+)?$/;
since \d is the same as [0-9] in regex.
因为 \d 与正则表达式中的 [0-9] 相同。
回答by Shagun1390
This is also allows decimal and whole numbers.
这也允许小数和整数。
/^[0-9]+\.?[0-9]*$/
