Why small mutations can break big applications — and how immutability keeps your state clean, predictable, and easy to debug.
structuredClone() was available more than 3 years ago, but you forgot to mention it. You could also use Object.assign for shallow copy.
Great point, Peter — totally agree! 🙌
structuredClone() is a solid modern choice, and Object.assign() is still great for shallow copies.
Curious — do you use structuredClone() often in production, or still rely on libraries like Lodash for deep cloning?
I rarely need to clone any data, as I don't mutate it. I map / reduce the data, or make a shallow copy of the changed parts.
That’s a really clean approach 👌
Keeping data immutable from the start makes cloning almost unnecessary.
Do you mostly work with functional patterns (like map/reduce pipelines) across your projects, or mix in some OOP-style structures too?
In React, I use functional approach. In Angular and Web Components I use OOP style structures.
Makes total sense 👍
React’s functional model really encourages immutability, while Angular and Web Components lean more toward OOP patterns by design.
Do you find switching between those paradigms affects how you structure your data flow or think about state management?
Such an important topic immutability feels subtle until a tiny mutation breaks something miles away in the app.
Absolutely! 🔥 It’s one of those things that feels minor until it causes hours of debugging later. Immutability really keeps state changes predictable — especially in React apps.
Really like it! Thanks!
Thank you!
structuredClone() was available more than 3 years ago, but you forgot to mention it. You could also use Object.assign for shallow copy.
Great point, Peter — totally agree! 🙌
structuredClone() is a solid modern choice, and Object.assign() is still great for shallow copies.
Curious — do you use structuredClone() often in production, or still rely on libraries like Lodash for deep cloning?
I rarely need to clone any data, as I don't mutate it. I map / reduce the data, or make a shallow copy of the changed parts.
That’s a really clean approach 👌
Keeping data immutable from the start makes cloning almost unnecessary.
Do you mostly work with functional patterns (like map/reduce pipelines) across your projects, or mix in some OOP-style structures too?
In React, I use functional approach. In Angular and Web Components I use OOP style structures.
Makes total sense 👍
React’s functional model really encourages immutability, while Angular and Web Components lean more toward OOP patterns by design.
Do you find switching between those paradigms affects how you structure your data flow or think about state management?
Such an important topic immutability feels subtle until a tiny mutation breaks something miles away in the app.
Absolutely! 🔥 It’s one of those things that feels minor until it causes hours of debugging later. Immutability really keeps state changes predictable — especially in React apps.
Really like it! Thanks!
Thank you!