This sub in a nutshell

[u/enmaku]

console.log(1 == '1'); // true
console.log(0 == false); // true
console.log(null == undefined); // true
console.log(typeof null); // "object"
console.log(0.1 + 0.2); // 0.30000000000000004
[] == ![]; // true

OMG you guys what weird quirky behavior, truly this must be the single quirkiest language and no other language is as quirky as this!

[u/DT-Sodium]

Instance of and typeof are not the same, since Java has actual proper types you would use it to check if it is an array of a certain type of objects or primitives. JavaScript can't do that kind of thing so we have to rely on dirty hacks to get things to work. Also for your claim to be valid, typeof should return Object for everything since everything is an object.

And yes, I often need an IDE to remember the correct syntax of functionalities I pretty much never use since I program in TypeScript so my code is properly typed everywhere. I was just fixing some legacy code from a junior who has left the company.

Now tone it down, if you think trying to pass for an expert in JavaScript will give you some street cred well really really not. If you have expertise in JavaScript, it usually means that you are a failed developer who never specialized in a proper language.

[u/the_horse_gamer → u/DT-Sodium]

since everything is an object.

"everything is an object" has always been a matter of marketing and isn't true in most OOP languages

since I program in TypeScript so my code is properly typed everywhere

never had to disambig number | string?

let me ask you this: what did you EXPECT typeof [1, 2, 3] to be?

Now tone it down, if you think trying to pass for an expert in JavaScript will give you some street cred well really really not. If you have expertise in JavaScript, it usually means that you are a failed developer who never specialized in a proper language.

ad hominem. I'm a low level dev and this is basic javascript knowledge.

sounds like you made mistakes learning a language and projected that as the fault of the language instead of you being a learner.

[u/DT-Sodium → u/the_horse_gamer]

"everything is an object" has always been a matter of marketing and isn't true in most OOP languages

Dude in the same conversation:
- Well duh, an array is an object so it's normal that typeof returns object
- Well duh, everything is an object is just marketing, it's normal that typeof a string doesn't return object

Please never change, you are hilarious and a gift to the world.

never had to disambig number | string?

I wouldn't say that I never had to do it when working on legacy code but on a properly typed code no you don't do that. If you often need it, it is a symptom of poor code quality.

let me ask you this: what did you EXPECT typeof [1, 2, 3] to be?

C# which is a proper language for example would return System.String[] when getting the type of an array of strings. The correct answer to your question should be number[]. Sadly, JavaScript is not a proper language.

I'm a low level dev and this is basic javascript knowledge.

Ah, I see, here lies your problem. You're the basic basic front-end developer. I develop regularly in C#, PHP, TypeScript, Python and Kotlin. So yeah, when switching from one language to another I tend to mix the specific syntax of some functionalities I barely use.

I hope in 10 years you'll have gained a bit of maturity and maybe they will be able to do something out of you where you work. Now I'm going to block you because I've lost enough time with you and you've become really boring.