JavaScript箭头函数用法

function say(name){
    console.log("hello" + name);
}

var say = name => console.log("hello " + name);
say("zhanshen");

function sum1(a, b) {
    return a + b;
}
var sum2 = (a, b) => a + b;
console.log(sum1(2, 3));
console.log(sum2(2, 3));

var MAX = (a, b) => {
    if (a > b) {
        return a;
    } else {
        return b;
    }
}

person = {
    name: 'zhanshen',
    age: 12,
    language: ['java', 'python', 'go']
}
var hello = (person) => {
    console.log("hello "+person.name);
}
// 用结构表达式
var hi = ({name}) => {
    console.log("hi " + name);
}
hello(person)
hi(person)