A memory leak occurs when a computer program incorrectly manages memory allocations, failing to release memory that is no longer needed. Essentially, your application asks for RAM from the system but forgets to give it back, eventually causing the system to run out of available memory.

The Analogy

Imagine you are checking books out of a library, but instead of returning them, you keep them in your backpack forever. At first, your backpack is light. By the tenth book, it’s heavy. Eventually, you have no more space to store anything else, and you are forced to stop visiting the library entirely. In software, your code is the library patron, and the RAM is the backpack space; if you never release your references to objects, the system can't reuse that space.

Why It Matters

In the real world, developers use memory management tools to keep services stable. Without these checks, an application might start perfectly fine but degrade over time, leading to "Out of Memory" (OOM) crashes in production.…