The title says it all. Let’s talk about one of JavaScript’s most underrated features: Object.freeze(). This powerhouse of immutability isn’t just another method - it’s your secret weapon for writing safer, more predictable code ✨.
I’ll be honest, when I first discovered Object.freeze(), I mostly ignored it. “Just don’t mutate your objects,” I thought. But as my applications grew more complex, I started to see its true value. Now, it’s an essential part of my toolkit.
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TypeScript’s readonly is compile-time only and has zero runtime cost
This point means that I’ll probably never use the good ideas in this post: if I’m doing JS complicated enough to need Object.freeze(), I’ll be doing it in Typescript.
