Regex allow digits and a single dot

Question

What would be the regex to allow digits and a dot? Regarding this \\D only allows digits, but it doesn\'t allow a dot, I need it to allow digits and

Answer 1

\d*\.\d*

Explanation:

\d* - any number of digits

\. - a dot

\d* - more digits.

This will match 123.456, .123, 123., but not 123

If you want the dot to be optional, in most languages (don't know about jquery) you can use

\d*\.?\d*