jQuery 验证十进制数
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Validating Decimal Numbers
提问by black_belt
I have a form and I am using jQuery validation plugin to validate it. Now I am trying to validate decimal number input.
我有一个表单，我正在使用 jQuery 验证插件来验证它。现在我正在尝试验证十进制数字输入。
I have tried the following code, but its not working. Is the problem with the regular expression or the way of writing the custom rule is wrong in my code?
我已经尝试了以下代码，但它不起作用。是正则表达式的问题还是我的代码中自定义规则的编写方式有问题？
rules: {
paid_amount: {
required:true,
rexp: ^[1-9]\d*(\.\d+)?$
},
}
},
messages: {
paid_amount: {
required: "Enter Paid Amount",
rexp:"Decimal Numbers Only"
},
}
});
回答by dSquared
You can use the number validation method found here
您可以使用此处找到的数字验证方法
From the docs:
从文档：
$("#myform").validate({
rules: {
field: {
required: true,
number: true
}
}
});
In your case:
在你的情况下：
rules: {
paid_amount: {
required:true,
number: true
}
},
messages: {
paid_amount: {
required: "Enter Paid Amount",
number: "Decimal Numbers Only"
}
}
回答by black_belt
I'm not familiar with jquery validator plugin, sorry but your regular expression is valid.
我不熟悉 jquery 验证器插件，抱歉，您的正则表达式有效。
another approach would be
另一种方法是
var reg = "/^[1-9]\d*(\.\d+)?$/"; //reg pattern<br/>
if(reg.test("1.23"))//validate
{
//do something <br/>
}
回答by RN Kushwaha
回答by merlincita_pj
Your problem is with the method 'rexg'. You should use 'pattern'. Example:
您的问题出在“rexg”方法上。你应该使用“模式”。例子：
paid_amount: {
required:true,
pattern: ^[1-9]\d*(\.\d+)?$
}
回答by Robert Niestroj
Use the jQuery isNumeric function: http://api.jquery.com/jQuery.isNumeric/
使用 jQuery isNumeric 函数：http: //api.jquery.com/jQuery.isNumeric/
