functions in map javascript

1function listFruits() {
2  let fruits = ["apple", "cherry", "pear"]
3  
4  fruits.map((fruit, index) => {
5    console.log(index, fruit)
6  })
7}
8
9listFruits()
10
11// https://jsfiddle.net/tmoreland/16qfpkgb/3/

1const numbers = [1, 2, 3, 4, 5]; 
2
3const bigNumbers = numbers.map(number => {
4  return number * 10;
5});

1const map = new Map();
2
3function foo() {
4 return "Hello World!"; 
5}
6
7map.set("foo", foo);
8
9console.log(map.get("foo")()); // Output: "Hello World!

1['elem', 'another', 'name'].map((value, index, originalArray) => { 
2  console.log(.....)
3});