ReactWeather/example-arrow-functions.js at master · agelenler/ReactWeather · GitHub

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var names = ['Ali', 'John', 'Jen'];

names.forEach(function(name) {
  console.log('forEach', name);
});

names.forEach((name) => {
  console.log('arrowFunc', name);
});

names.forEach((name) => console.log(name));

var returnMe = (name) => name + '!';
console.log(returnMe('Ali'));

var person = {
  name: 'Ali',
  greet: function() {
    names.forEach(function (name) {
      console.log(this.name + ' says hi to ' + name);
    })
  }
};

person.greet();

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

person.greet();

function add(a, b) {
  return a + b;
}

//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));
//console.log(add(1, 3));
//console.log(add(9, 0));