Freeze ❄️ objects | Object.freeze() method in JavaScript

Pubblicato il: 30 aprile 2024
sul canale di: Mayank Srivastava

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We know that object properties can be modified even when the object itself was declared with the const keyword, For example here in the snippet we are updating the age property of the person object and when we log the person object we can see that the value of age was updated.
So how do we solve the problem of object having mutable properties. Luckily javascript provides the static object method freeze to solve this very problem. So, what does Object.freeze() do? It's simple! It prevents any changes to an object's properties and prevents new properties from being added or removed. See? Once we've frozen the object using Object.freeze(), any attempts to modify its properties are futile. It's like putting your code on lockdown! So, remember, when you want to safeguard your objects and keep them exactly as they are, reach for Object.freeze(). Your code will thank you!

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