Matching Start & End - Hacker Rank Solutions

The ^ symbol matches the position at the start of a string.

The $ symbol matches the position at the end of a string.

Task

You have a test string . Your task is to match the pattern 
Here,  denotes a word character, and

Matching Word & Non Word Character - Hacker Rank Solutions

The expression \w will match any word character. 
Word characters include alphanumeric characters (-, - and -) and underscores (_).

Matching Whitespace & Non-Whitespace Character - Hacker Rank Solutions

\s matches any whitespace character [ \r\n\t\f ].

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\S matches any non-white space character.

Task

You have a test string . Your task is to match the pattern 
Here,  denotes whitespace characters, and  denotes non-white space characters.