Regular expression diffrence between [waz{2,3}up] and waz{2,3}up

Question

Exercise 6: Matching Repeated Characters
Task    Text     
Match   wazzzzup    Success
Match   wazzzup Success
Skip    wazup

I came up with [waz{2,3}up].

What I meant was matching character w, a and z, with z in repetition 2-3 times, followed by u and p. But without [] was the answer

@Wiktor is the expert here but those square brackets turned your expression into a character class. Perhaps you were thinking of parentheses? — shawnt00, Apr 12 '16 at 19:11
Bro I found removing help but wanted to know difference between [] and without [] — codefreaK, Apr 12 '16 at 19:11
[waz{2,3}up] actually means any character w or a or z or { or 2 or , or 3 or } or u or p. So anything between [] refers to a character with in. — Aditya Sharma, Apr 12 '16 at 19:11
In a positive character class, it is OR. To use AND, you need to use a *sequence*, without the square brackets. — Wiktor Stribiżew, Apr 12 '16 at 19:12

codefreaK · Answer 1 · 2016-04-12T19:14:35.157

-1

I realised the answer after a while .[] made it pass a string with w or a z and { or } 2,3 or u and p.

edited Apr 12 '16 at 19:14

answered Apr 12 '16 at 19:10

codefreaK

Your use of "and" is incorrect. With the square brackets you only need to match *any one of the characters* inside. – shawnt00 Apr 12 '16 at 19:13
Thanks for pointing it out – codefreaK Apr 12 '16 at 19:14

1 Answers1