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RegEx (used for finding, replacing, or extracting data from your content,…

- - - - any text with a predictable format can be extracted, found or replaced
        
        commands must be general
        
        Escape characters say that the next character in the expression should be interpreted specially
        
        the escape character in RegEx is "\"
        
        using "\w" finds any alpha numeric character
        
        whereas "\W" finds non alphanumeric characters
        
        1 more item...
        
        for example: "\d" means we are looking for any character
        
        another example: "\D" means that you are finding any character except for digits
- - - - one way to find repetitions is using the asterisk "*" which says that the pattern can be matched many times
        
        the asterisk also allowed the pattern to be skipped if there are no matches
        
        using the plus sign "+" says the pattern must be found at least once
        
        curly brackets {} specify the number of times a pattern can appear
        
        Capturing is used with parentheses
        
        new columns can be created through finding matches in substrings