arrow-functions.js

// ES6 (fat) Arrow functions
//work best in callback function scenarios
// parentheses around input if more than one
// curly braces around function body if more than one line/command
// return only needed if more than one line of code

let numbers = [123, 234, 345, 456, 567];
let names = ['Alex', 'Bree', 'Cara', 'Cole', 'Devon', 'Riley'];

//simple function syntax
//create a new array of the values from the array greater than 300
let big = numbers.filter(function(item){
   return item > 300; 
});

//arrow function version
let bigA = numbers.filter( item => item > 300 );

console.log(big);
console.log(bigA);

names.forEach( function(item, index){
    console.log( index, item);
});
names.forEach( (item, index) => console.log( index, item ));

nice one