怎么理解Array.find

怎么理解這段代碼的輸出？

var inventory = [
    {name: 'apples', quantity: 2},
    {name: 'bananas', quantity: 0},
    {name: 'cherries', quantity: 5}
];

function findCherries(fruit) { 
    return fruit.name === 'cherries';
}
console.log(inventory);    //cherries的quantity為10;
var item = inventory.find(findCherries);
console.log(item);
item.quantity = 10;
console.log(inventory);    //cherries的quantity為10;

chrome運(yùn)行結(jié)果