💾obj.isIterable

JS⟩ iteration ⟩ iterable ⟩ extension ⟩ obj.isIterable

check if an object is iterable.

array.isIterable,    // true
object.isIterable,   // false
(3).isIterable,      // false

💾 程式

• replit ⟩ Iterable (protocol)

Object.defineProperties(Object.prototype, {
    // ⭐️ obj.isIterable
    isIterable: {
        get() {
            // ⭐️ code copied from the chat bot "chatGPT"
            return typeof this[Symbol.iterator] === 'function';
        }
    },
}

👥 相關

• Symbol.iterator - "make-iterator" method name.

• Object.defineProperty() - define new properties.

📗 參考

• JavaScript: The Definitive Guide ⟩ 12.2 Implementing Iterable Objects