es6 functions

const obj = {
  foo() {
    return 'bar';
  }
};

console.log(obj.foo());
// expected output: "bar"

const add = (n1, n2) => n1 + n2

hello = () => {
  return "Hello World!";
} 

multiplyfunc = (a, b) => { return a * b; }

const plantNeedsWater = day => day === 'Wednesday' ? true : false;

//If only 1 Parameter no () needed
//Single line return is implicit
//Single line no {} needed