Regex to match 8 or 12 or 32 hex number

Question

I am trying to write a regex for a case-insensitive hex number that should match either 8 or 12 or 32 in length.

The regex I have so far is:

/^[0-9A-F]{8}|[0-9A-F]{12}|[0-9A-F]{32}$/i

The pattern I am trying to test against is:
96AFC4ADA8C44A36B0CB1EC28531C3BC

or

870b72a9a020

or

569ac61e

But this doesn't seem to be matching the criteria.

Can you help?

Thanks,

Answer 1

你的方法基本上是正确的，但你需要采取^和$出替代品，所以它们适用于正则表达式作为一个整体：

/^(?:[0-9A-F]{8}|[0-9A-F]{12}|[0-9A-F]{32})$/i