JavaScript Arrays Explained in Depth | Methods, Map, Filter, Reduce | ES2025 | Day 9 скачать в хорошем качестве

JavaScript Arrays Explained in Depth | Methods, Map, Filter, Reduce | ES2025 | Day 9

Arrays are one of the most important data structures in JavaScript, and mastering them is a must for real-world development and interviews. In Day 9 of our 30 Days JavaScript (ES2025 / ES16) series, we dive deep into how arrays actually work, how to create and update them, and how to use both traditional and modern array methods effectively. 📘 What you’ll learn in this video: What arrays are and how they work internally Creating, accessing, and updating arrays Core array methods: push, pop, shift, unshift, slice, splice Iteration techniques: for loop, forEach, map Functional methods: filter and reduce (interview favorite) Modern immutable methods: toSorted, toReversed, toSpliced Useful helpers: find, findIndex, includes, at Spread operator and array destructuring Common mistakes developers make with arrays Hands-on practice task and summary This session is beginner-friendly, interview-oriented, and aligned with the latest ECMAScript 2025 standards. 👉 Watch till the end to strengthen your JavaScript fundamentals and write cleaner, more predictable code.