✨ Object.freeze vs Object.seal in JavaScript


❓ Object.seal prevents adding and/or removing properties from the sealed object and makes every existing property non-configurable.

❓ Object.freeze does Exactly what Object.seal do, plus It prevents modifying any existing properties.


❗️ There are Object.isFrozen() and Object.isSealed() methods to check if an object is frozen or sealed.


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📸 Image Credit: [here]
📖 Stack Overflow Answer: [here]
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#JavaScript #Programming


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✨ JavaScript's Garbage Collection

ℹ️ The garbage collector in JavaScript is responsible for reclaiming memory occupied by objects that are no longer needed. This mechanism is done using mark-and-sweep algorithm.

ℹ️ The mark-and-sweep algorithm consists of two main phases:

1️⃣Marking: Garbage collector marks reachable objects from the global object, ensuring none are left unmarked if reachable from a rooted object.

2️⃣ Sweeping: Garbage collector reclaims memory from unmarked objects, freeing it up for future use.


📕 Learn more about the JS's garbage collector's mechanism and best practices on the Medium I have written.


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📚Article (Written by me!): [here]
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#JavaScript #Algorithm


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