Learn how Chainlink Functions connected smart contracts to APIs, how its DON-based system worked, and why developers now use ...

When writing JavaScript, you encounter callback functions almost every day. map, filter, addEventListener, setTimeout, Promise's then... the list goes on and on. There is a point I always keep in mind ...

Google confirmed Thursday that attackers were already exploiting a type confusion flaw in Chrome's V8 JavaScript engine before a patch existed, marking the sixth zero-day of 2026 — and the third to ...

WordPress XSS2Shell flaw enables admin takeover and remote code execution. Users should update to patched versions. Researchers at Pwn just published a report on a vulnerability chain they’re calling ...

JAVAONE Oracle has shipped Java 26, a short-term release, and introduced Project Detroit, which promises faster interop between Java, JavaScript, and Python. Java 26 will be supported for just six ...

A critical sandbox escape vulnerability has been disclosed in vm2, a popular Node.js library used to run untrusted code in a sandboxed environment. CVE-2026-22709 allows attackers to bypass Promise ...

Привет, Хабр! Я — Александр Дудукало, автор одноименного YouTube-канала. В прошлой статье мы разобрали ссылочный тип данных, который хранит не само значение, а ссылку на него в памяти. Сегодня ...

Use-after-free (UAF) vulnerabilities represent one of the most critical and prevalent security threats in modern software systems, particularly affecting applications written in memory-unsafe ...

The map method is a convenient way to execute a function on each element of an array and create a new array. const numbers = [1, 2, 3, 4, 5]; const doubled = numbers ...

In server-side JavaScript, you will most likely use the fs library for dealing with the filesystem. This library is a module in Node and other platforms like Bun. So you don’t need to install it using ...