RegexOne.com has an interactive lessons for Regular Expression and in this post, I want to solve all the lessons with a solution different from the one the provided.
For example: \w matches any word character (equal to [a-zA-Z0-9_]), so if the solution on RegexOne.com is \w then I have to look for another way like [a-zA-Z0-9_] to solve to lesson.
Lets get started...
Exercise 1: Matching Characters
Exercise 1½: Matching Digits
Exercise 2: Matching With Wildcards
Exercise 3: Matching Characters
Exercise 4: Excluding Characters
Exercise 5: Matching Character Ranges
Exercise 6: Matching Repeated Characters
Exercise 7: Matching Repeated Characters
Exercise 8: Matching Optional Characters
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