Regex Samples

Regex Samples Figures 1

Always be precise in the way you specify your data. The following question can be multiple interpreted.
Create a regular expression that matches the figures:

• 1 - 49
• 01 - 49

Of course the ^[0-4]?[0-9] is much too simple.

Matches correctly but recognize 11 first as 1 and 1

Matches correctly but recognize 11 first as 1 and 1

Matches correctly but recognize 51 as 5 and 1

Matches all correctly

Regex Samples Figures 1

Always be precise in the way you specify your data. The following question can be multiple interpreted.
Create a regular expression that matches the figures:

• 25 - 67

Matches correctly 25 - 27 but only on one line

Matches correctly all figures 25 - 67

Regex Email Address

Always be precise in the way you specify your data. The following question can be multiple interpreted.
Create an email checker for input validation of an email.

Email checker