Validate decimal field value should be in format of .10 for example

[bdoug]

I have a decimal field and I want to validate the field to ensure the data is in the format of .99.   In other words a decimal point and at most 2 digits behind it, no digits should be in front of the decimal point either.   Any help that you can offer would be greatly appreciated.

[Abhinay Erra]

here you go

here num= your decimal value;

var number=parseFloat(num.toString().substring(num.toString().indexOf('.'))).toFixed(2);

[rob_pastore · Accepted solution]

you can use toFixed(2) to round to two decimal points.

JavaScript toFixed() Method

if you want to validate there is nothing before the decimal point i would just check that x < 1   (and > 0 if negatives are not allowed)

If you don't want to round the values, you can validate using .length

[bdoug]

You all pointed me in the right direction.   Your suggestion to ensure the value is between 0 and 1 is exactly what I need.   Thanks again.

[Abhinay Erra]

LOL. I missed it. That was a low hanging fruit. I have misread your requirements. My code was to set the value to only 2 decimals after decimal point and nothing in front of it.