Arrow Functions

In the Code tab you will find code that is missing a single character in order to pass the tests. However, your goal is to submit a function as minimalist as possible. Use the tips in the tips section below.

Write five adder functions:

• add2(x) should return 2 + x.
• add3(x) should return 3 + x.
• add5(x) should return 5 + x.
• add7(x) should return 7 + x.
• add11(x) should return 11 + x.

Tips

Functions that consist only of a return can be written as a one-liner with an arrow function.

For example, the code:

function areSame(a, b) {
    return a == b;
}

Can be simplified to:

areSame = (a, b) => a == b;

Bonus

(a, b) => a == b is technically an anonymous function. However, it can be assigned to the identifier areSame and it can then be called using areSame().

Notes

• This is an open series: there isn't a definite list of features for the challenges. Please, do not hesitate to leave your suggestions in the Comments.
• Readability is indeed a subjective concept. Let's discuss it! Feel free to leave your opinion in the Comments.