Apr 22, 2025 · 4 min read · In the previous post, we understood how garbage collection (GC) works under the hood in JavaScript. Now, we're going to understand memory leak patterns. Here's an expanded explanation of each common memory leak pattern and how to prevent them. 1. Lon...
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Apr 19, 2025 · 4 min read · In software engineering, garbage refers to variables and references that are no longer in use. These leftover values still take up memory and should be cleaned up, either manually (in low-level languages like C or C++) or automatically (in higher-lev...
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Jan 22, 2024 · 1 min read · You’ll often see the key attribute when rendering lists in React. However, it also serves another purpose You can reset the state of a component or force re-rendreing by assigning a new key to it. In this instance, the Reset button modifies the versi...
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Jul 19, 2023 · 2 min read · as you know we must declare a key for each item in .map() function Why react needs key Without keys, React may have difficulty efficiently updating the component tree and may resort to re-rendering the entire list on every change, that cause leading ...
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