Simple regular expression for a decimal with a precision of 2

Question

What is the regular expression for a decimal with a precision of 2?

Valid examples:

123.12
2
56754
92929292929292.12
0.21
3.1

Answer 1

I tried one with my project. This allows numbers with + | - signs as well.

/^(\+|-)?[0-9]{0,}((\.){1}[0-9]{1,}){0,1}$/