Question

How can i validate a textbox where input should be in two specified formats..The formats are

For example: 1-5 or 1 2 3 4 5

See i want to enter the numbers (numbers only) in above two ways only.Either like 1-5(no spaces in between) or like 1 2 3 4 5(only one space in between).How can i validate and avoid the entries except in these two formats using regular expressions?

Please help

Answer 1

^(\d+)(-(\d+)|( \d+)+)?$

The above regex should match your requirements

Of course, this is javascript!

var regex = /^(\d+)(-(\d+)|( \d+)+)?$/;

To validate:

if (regex.test(formValue))
{
    //Valid textbox value
}