Regular expression to exclude 0 or blank space

Question

^[0 ]{1}\Z

I'm looking for a regular expression that targets 0 and a single blank space

This isn't working... what am I doing wrong?

It searches for any instance of 0 in a string. I don't want it to do that. I want it to ONLY find instances where the field has a '0' or if it is left blank.

10 <--- grabs 0 (should not do this)

Answer 1

以下正则表达式将检查字符 '0' 或 ' ' 是否只出现一次，并且它们是唯一提供的字符。

/^([0 ])$/