1.forEach

var colors = ["red","blue","green"];

// ES5遍历数组方法

for(var i =0;i

// console.log(colors[i]);

}

// ES6 forEach

colors.forEach(function(color){

// console.log(color);

});

// 练习: 遍历数组中的值,并计算总和

var numbers = [1,2,3,4,5];

var sum =0;

function adder(number){

sum += number;

}

numbers.forEach(adder);

console.log(sum);