Arrow function examples for return and filter, from https://es6.io. 1. Return an object with winners, the race they participate in and their finishing place based on the order of the array. Note that the second argument is shorthand, when both the name and value are equal. Also note the braces around the curly brackets to immediately invoke a re…

arrow-function-examples

const race = '100m Dash';
const winners = ['Hunter Gath', 'Singa Song', 'Imda Bos'];

// Return an object with winners, the race they participate in and their 
// finishing place based on the order of the array
// Note that the second argument is shorthand, when both the name and value
// are equal
const win = winners.map((winner, i) => ({ name: winner, race, place: i+1}));
console.log(win);

const ages = [12, 10, 20, 49, 70, 86, 96, 83, 98, 66, 77, 55, 45];

// Filter an age
const old = ages.filter(age => age >= 60);
console.log(old);