SOURCE

let apple = {
    color: 'green',
    say(...args) {
        console.log('苹果有点甜！' + this.color+args);
    }
}
let banana = {
    color: 'yellow'
};
// apple.say.call(banana,'yellow','blue','red');
apple.say.apply(banana,['apply','red','blue'])

// function Fruits() {}
 
// Fruits.prototype = {
//     color: "red",
//     say: function() {
//         console.log("My color is " + this.color);
//     }
// }
 
// var apple = new Fruits;
// apple.say();    //My color is red
// banana = {
//     color: "yellow"
// }
// apple.say.call(banana);     //My color is yellow
// apple.say.apply(banana);    //My color is yellow
// Fruits.prototype.say.call(banana); //My color is yellow
// Fruits.prototype.say.apply(banana); //My color is yellow