Java Script Regex Is not working as expected

Asked Aug 02 '19 at 13:23

Active Aug 03 '19 at 08:32

Viewed 35 times

I am trying this Regex -

/^[a-zA-Z0-9]([a-zA-Z0-9-/&\s)])*/

Allow any name which starts with group 1 and also allow repetition of character's from second group.

It doesn't work for following - a$

I think since it is matching with first character . test () returning true for it.

How to write correct regex for it?

Examples :

abc- Should Match
abc. should Match
az-az should match
0a9.0a9 should match
a$ Shouldn't Match
$ Shouldn't Match
abc 1 abc. Should Match
abcz&abc& Should Match
az# Shouldn't Match
az#az Shouldn't Match
ABC' Should Match
ABC'XYZ-1239 Should Match

edited Aug 03 '19 at 08:32

asked Aug 02 '19 at 13:23

user3571396

You are not matching a `$` – The fourth bird Aug 02 '19 at 13:26
The regex clearly does not allow for "$" as a character in the string. – Pointy Aug 02 '19 at 13:26
You did not anchor it at the end: `/^[a-zA-Z0-9][a-zA-Z0-9\/&\s)-]*$/` – Wiktor Stribiżew Aug 02 '19 at 13:26
Also `9-/` does not make sense; the "/" character comes before the "9" character in UTF encoding. – Pointy Aug 02 '19 at 13:29
1

@Pointy no, *I think since it is matching with first character . test () returning true and for it.* - OP needs *false* for the string. Also, `-` can come after a valid range in a character class in a regex without `u` modifier. – Wiktor Stribiżew Aug 02 '19 at 13:30
Oh right, I see that now. – Pointy Aug 02 '19 at 13:30

Java Script Regex Is not working as expected

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