Es6 Development Tutorials, Guides & Insights
Unlock 7+ expert-curated es6 tutorials, real-world code snippets, and modern dev strategies. From fundamentals to advanced topics, boost your es6 skills on DeveloperBreeze.
Adblocker Detected
It looks like you're using an adblocker. Our website relies on ads to keep running. Please consider disabling your adblocker to support us and access the content.
History and Evolution
No preview available for this content.
20 Useful Node.js tips to improve your Node.js development skills:
No preview available for this content.
الفرق بين let و const و var في JavaScript
// استخدام let و const مع الحلقات
for (let i = 0; i < 5; i++) {
console.log(i); // 0, 1, 2, 3, 4
}
const name = "John";
if (true) {
let name = "Doe";
console.log(name); // Doe
}
console.log(name); // Johnبهذا الدليل الشامل، تعرفنا على الفرق بين let و const و var في JavaScript، وقدمنا أفضل الممارسات لاستخدامها في الكود الخاص بك.
البرمجة الكائنية (OOP) في JavaScript: المفاهيم الأساسية والتطبيقات
التغليف هو عملية إخفاء تفاصيل التنفيذ الداخلية للكائن عن العالم الخارجي. يمكن تحقيق ذلك في JavaScript باستخدام الفئات والفئات الخاصة (private classes).
class BankAccount {
constructor(owner, balance) {
this.owner = owner;
this._balance = balance; // خاص
}
deposit(amount) {
if (amount > 0) {
this._balance += amount;
console.log(`تم إضافة ${amount} إلى الحساب.`);
}
}
getBalance() {
return this._balance;
}
}
const account = new BankAccount("علي", 1000);
account.deposit(500);
console.log(account.getBalance()); // 1500Understanding JavaScript Classes
As of ECMAScript 2022, JavaScript supports private fields and methods, which are not accessible outside of the class definition. This is done by prefixing the field or method name with #.
class Counter {
#count = 0;
increment() {
this.#count++;
console.log(this.#count);
}
getCount() {
return this.#count;
}
}
const counter = new Counter();
counter.increment(); // Output: 1
console.log(counter.getCount()); // Output: 1
console.log(counter.#count); // Error: Private field '#count' must be declared in an enclosing class