July 2025 – ECMAScript 2025 has officially become a standard, introducing practical improvements that make JavaScript cleaner, safer, and more efficient. The update focuses on iterators, sets, async patterns, regex handling, and performance-oriented APIs.

Below are the key highlights with real-world code examples.

Iterator Helpers: Cleaner Data Processing

const numbers = [1, 2, 3, 4, 5];

// punojmë direkt me iterator
const result = numbers
  .values()
  .map(n => n * 2)
  .take(3)
  .toArray();

console.log(result); // [2, 4, 6]

New Set Methods

const a = new Set(["read", "write"]);
const b = new Set(["write", "delete"]);

console.log(a.union(b));
console.log(a.intersection(b));
console.log(a.difference(b));

Import Attributes & JSON Modules

import config from "./config.json" with { type: "json" };

RegExp.escape(): Safe Regex Construction

const input = "hello.(test)?";
const safe = RegExp.escape(input);

new RegExp(safe, "i").test("HELLO.(TEST)?");

Inline Regex Modifiers

/Hello (?i:world)/.test("Hello WORLD");

Promise.try(): Unified Async Handling

Promise.try() unifikon trajtimin e funksioneve që mund të jenë sync ose async.

Promise.try(() => maybeAsync("async"))
  .then(console.log)
  .catch(console.error);

Float16Array: Memory-Efficient Numeric Data

const values = new Float16Array([0.5, 1.25, 10.75]);

Conclusion

ECMAScript 2025 focuses on real developer needs:

improved performance.

cleaner syntax,

safer APIs,

better async workflows,