Assignment:

Create a function that can convert a string to its encoded hexadecimal value.

• In your answer, also show how to run this function (to validate answers).
• Your function must return OR print this text to STDOUT or any acceptable alternative.
• Your return value doesn't need to have whitespace between hexadecimal pairs.
• You may not use libraries/packages in general and any other functions that directly converts a string to hexadecimal. For example, using a function or package to convert the string to bytes is OK.
• This is Code Golf, so shortest code wins.

Example Input:

Input Example:

Hello World!

Output Examples:

48 65 6c 6c 6f 20 57 6f 72 6c 64 21

OR

48656c6c6f20576f726c6421