Kata

Write to function that takes as argument two strings and returns positive (True/true/1) if one string is a rotation of the other or else it returns False/false/0.

For example:

# ohell is left rotation of hello
is_rotation('hello','ohell') => True

# elloh is right rotation of hello 
is_rotation('hello','elloh') => True

// ohell is left rotation of hello
isRotation('hello','ohell') => true

// elloh is right rotation of hello 
isRotation('hello','elloh') => true

// elolh is NOT a rotation of hello 
isRotation('hello','elolh') => false

// ohell is left rotation of hello
isRotation("hello","ohell") => true

// elloh is right rotation of hello 
isRotation("hello","elloh") => true

// elolh is NOT a rotation of hello 
isRotation("hello","elolh") => false