ReactWeather01/example-arrow-functions.js at master · oskee121/ReactWeather01 · GitHub

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// EXAMPLE: Anonymous functions vs arrow functions
// var names = ['Andrew', 'Julie', 'Jen'];
//
// names.forEach(function (name) {
//   console.log('forEach', name);
// });
//
// names.forEach((name) => {
//   console.log('arrowFunc', name);
// });
//
// names.forEach((name) => console.log(name));

// EXAMPLE: Implicit return values
// var returnMe = (name) => name + '!';
// console.log(returnMe('Andrew'));


// EXAMPLE: Unmodified this binding
// var person = {
//   name: 'Andrew',
//   greet: function () {
//     names.forEach((name) => {
//       console.log(this.name + ' says hi to ' + name)
//     });
//   }
// };
//
// person.greet();

// Challenge Area
function add (a, b) {
  return a + b;
}
// console.log(add(1, 3));
// console.log(add(9, 0));

// addStatement
var addStatement = (a, b) => {
  return a + b;
}
// console.log(addStatement(4, 7));

// addExpression
var addExpression = (a, b) => a + b;
console.log(addExpression(3, -2));