//example 1 const addTwo = (num) => {return num + 2;}; //example 2 const addTwo = (num) => num + 2; //example 3 const addTwo = num => num + 2; //example 4 const addTwo = a => { const newValue = a + 2; return newValue; };Some have parentheses around the parameters, while others don’t.
That’s what this article will uncover: how to declare an arrow function.
const addTwo = num => num + 2;So we can add parentheses to the above example and the arrow function still works.
The Function BodyNow that we’ve got the parentheses rules covered, let’s turn to the function body of an arrow function.
An arrow function body can either have a “concise body” or “block body”.

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