Only positive and negative numbers in Javascript regex with zero or one minus symbol

Question

oninput="this.value = this.value.replace(/[^-0-9.]/g, '') 

I use this code in my project, but input also can get more than 1 minus signs like this:

---23

I want my input to have these conditions:

1. only can get positive and negative numbers
2. zero or one minus

Answer 1

You can adjust your regex to below

EDIT.

Based on your requirements:

• positive or negative integers

/^(-)?[0-9]*/g