feat: add es6 features explanation

Gildaciolopes · Gildaciolopes · commit d80b9306cb86 · 2025-03-14T19:32:31.000-03:00
diff --git a/intermediate/es6_features.js b/intermediate/es6_features.js
@@ -0,0 +1,49 @@
+// &#128204; JavaScript Intermediate - ES6+ Features
+
+// Welcome to the fourth section of the JavaScript Intermediate tutorial!
+// Here, you'll learn about modern JavaScript features introduced in ES6 and beyond.
+
+// let and const (Block-Scoped Variables)
+let city = "New York";
+const country = "USA";
+console.log(city, country);
+
+// Template Literals
+const name = "Alice";
+console.log(`Hello, ${name}!`);
+
+// Arrow Functions
+const add = (a, b) => a + b;
+console.log("Sum:", add(5, 3));
+
+// Destructuring Arrays and Objects
+const person = { firstName: "John", lastName: "Doe" };
+const { firstName, lastName } = person;
+console.log(firstName, lastName);
+
+// Spread and Rest Operators
+const numbers = [1, 2, 3];
+const newNumbers = [...numbers, 4, 5];
+console.log("Spread:", newNumbers);
+
+const sumAll = (...nums) => nums.reduce((total, num) => total + num, 0);
+console.log("Rest:", sumAll(1, 2, 3, 4));
+
+// Default Parameters
+const greet = (name = "Guest") => console.log(`Hello, ${name}!`);
+greet();
+
+// Promises and Async/Await
+const fetchData = () => {
+  return new Promise((resolve) => {
+    setTimeout(() => resolve("Data Loaded"), 2000);
+  });
+};
+
+async function loadData() {
+  const data = await fetchData();
+  console.log(data);
+}
+loadData();
+
+// &#128161; Practice using ES6+ features to write cleaner and more efficient code!
