How to return lowercase text in a javascript arrow function without using a return in the statement body

Question

I am solving a problem for school. The problem instructs me to: "create and arrow function with the following:

1. accepts a parameter

2. does not use the return keyword

3. returns text passed to it as lower case (with method toLowerCase() ) "

The code should be passed:

getLowerCase('MY UPPERCASE TEXT');

There are three test cases it must pass:

1. "getLowerCase does not use a return"

2. "getLowerCase returns lowercase text"

3. "getLowerCase is a valid arrow function"

I tried a few cases, but in my mind, they all require a return statement. I'm newer to javascript (used python previously) and I am easily confused as to how to return a value without use a return keyword explicitly.

const getLowerCase = text => {
  return text.toLowerCase();
  // this should make sense, but uses a return statement
};

const getLowerCase = text => {
  getLowerCase: text.toLowerCase 
}
// probably gobbly-goo, tried reading this posting, might have gotten lost: https://stackoverflow.com/questions/28770415/ecmascript-6-arrow-function-that-returns-an-object?noredirect=1&lq=1 

Answer 1

In JavaScript, a single statement do not require a return statement for arrow functions:

const lowercase = n=>n.toLowerCase();

The JavaScript engine automatically interprets the statement inside the function as an expression and returns the result of that expression immidiately.