Arrays: The Building Block of Data Structures (DSA Part— 4)

Master the Fundamentals of Arrays: Operations, Applications, and Real-World Examples.

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Other DSA Links: DSA Part — 0 | DSA Part — 1 | DSA Part — 2 | DSA Part — 2.1 | DSA Part 2.2 | DSA Part 3 | DSA Part 4 | DSA Part 5 | DSA Part — 6

Arrays are one of the most fundamental data structures in computer science. Whether you’re just starting with Data Structures and Algorithms (DSA) or diving into advanced concepts, arrays act as the foundation for many other structures like matrices, heaps, and hash tables.

In this blog, we’ll explore what arrays are, how they work, and why they’re so important.

1 — What is an Array?

An array is a collection of elements, all of the same type, stored in contiguous memory locations. Arrays allow for:

• Random Access: You can directly access an element using its index.
• Fixed Size: The size of the array is defined at the time of creation.

Example of an Array:

let numbers = [10, 20, 30, 40, 50]; // Array of integers