🔸getter/setter

JS ⟩ value ⟩ object ⟩ property ⟩ getter/setter

(⭐️ ES5)

an accessor property (not a data property) that has a getter and/or a setter method.

// defining "accessor properties"

// method 1:
let obj = {
    // data property
    _value: 0,
    // accessor property (pair of methods)
    get prop() { return this._value },
    set prop(value) { this._value = value },
};

// method 2:
Object.defineProperty(obj, 'prop', {
    get() { ... },         // getter
    set(value) { ... },    // setter
});

obj.prop;            // getting obj.prop
obj.prop = value;    // setting obj.prop

🈯 synonyms： "accessor property"

👥 相關

• class getter/setter

• arr.last

• ⭐️ ES6 (2015) (shorthand method names)

• helpers

💈範例

📗 參考

📘 手冊