regex for string is confusing

Asked May 08 '18 at 13:59

Active May 02 '19 at 13:27

Viewed 113 times

Is there any difference between the two regexes?

  isFunctionKey(funKey) {
  return /^('funKey')|([01][1-9]|2[0-4])$/.test(funKey);
  }

and

 isFunctionKey(funKey) {
    return /^(funKey)|([01][1-9]|2[0-4])$/.test(funKey);
  }

HINT: Look into return statement funkey; one is in quotes and the other is not.

edited May 02 '19 at 13:27

Yevhen Horbunkov

asked May 08 '18 at 13:59

Rachit Bhatnagar

1

Have you tested the two to get the answer to this question? – Pogrindis May 08 '18 at 14:01
5

The first one matches `'funKey'` while the second only matches `funKey` – ctwheels May 08 '18 at 14:01
Yes, the difference is that one matches `'funkey'` in quotes, while the other matches `funkey` without quotes. Anything else? – Tim Biegeleisen May 08 '18 at 14:01
Are you trying to use a variable in a pattern?! – revo May 08 '18 at 14:05
This is so funkey. – Dave Newton May 08 '18 at 14:13
@Pogrindis ,yes i tested it but i got confused ,that's why i opted for stackoverflow.Thank you for you attention. – Rachit Bhatnagar May 09 '18 at 05:16
@ctwheels thanks for your comments ,it was really helpful;but your linked provided didn't helped me much.Thank you very much for your attention and clearing my doubts in no time. – Rachit Bhatnagar May 09 '18 at 05:17
@TimBiegeleisen thank you for again clearing my doubts.Thanks alot – Rachit Bhatnagar May 09 '18 at 05:20
@RachitBhatnagar The best thing to do in this scenario, at least for starters, is to just test the regex using a tool like www.regex101.com – Tim Biegeleisen May 09 '18 at 05:21
@revo no i was not trying to use a variable in pattern. – Rachit Bhatnagar May 09 '18 at 05:21
@TimBiegeleisen thank you for quick response and advice – Rachit Bhatnagar May 09 '18 at 05:23

0 Answers0