I am trying to make a regex test that returns true for the following conditions:
The order does not matter except that string[0] should be '#'.
So far I have: /^#[A-F0-9^!G-Z]/i
but for some reason, it returns strings that have letters after F (like G or J) as true.
You can use
^#[0-9A-Fa-f]*$
Details:
^ - start of string# - a hash symbol[0-9A-Fa-f]* - zero or more hex chars (note it can be written as [[:xdigit:]]* in some regex flavors, but not in ECMAScript flavor used in JavaScript)$ - end of string.