2022-10-14
2179
#react
Esteban Herrera
254
Oct 14, 2022 ⋅ 7 min read

Immutability in React: Should you mutate objects?

Esteban Herrera Family man. Java and JavaScript developer. Swift and VR/AR hobbyist. Like books, movies, and still trying many things. Find me at eherrera.net

Recent posts:

i tried kiro and here is what i learned

I tried out Kiro: Here’s what I learned

Check out Kiro, AWS’s AI-powered IDE, see what makes it different from other AI coding tools, and explore whether it lives up to the hype.

Elijah Asaolu
Aug 28, 2025 ⋅ 5 min read
Go Design Pattern Article Image With Logo

Why Go design patterns still matter

Here’s how three design patterns solved our Go microservices scaling problems without sacrificing simplicity.

Peter Aideloje
Aug 28, 2025 ⋅ 2 min read
how to protect your ai agent from prompt injection attacks

How to protect your AI agent from prompt injection attacks

Explore six principled design patterns (with real-world examples) to help you protect your LLM agents from prompt injection attacks.

Rosario De Chiara
Aug 27, 2025 ⋅ 5 min read
Don’t Let AI Erase The Next Generation Of Dev Leaders

Don’t let AI erase the next generation of dev leaders

As AI tools take over more routine coding work, some companies are cutting early-career dev roles — a short-sighted move that could quietly erode the next generation of tech leaders if we aren’t careful.

Jack Herrington
Aug 26, 2025 ⋅ 6 min read
View all posts

5 Replies to "Immutability in React: Should you mutate objects?"

  1. In JavaScript, strings are not arrays so you can do something like this:

    str[2] = ‘d’;

    But you cannot do this.

  2. Is there a missing “not” in this sentence: “In JavaScript, strings are not arrays so you can do something like this:

    str[2] = ‘d’;”

  3. In the above example, both references (str1 and str2) are equal because they point to the same object (‘abc’).

    I would change this phrase and also the image it is confusing… because in the end they are not pointing to the same object abc.. they have different values.. so no matter if you change str1 , str2 wont be affected. Because strings are primitive not references.. therefore there;s no pointing.

Leave a Reply