Why does this JavaScript code produce different outputs?

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Asked By CuriousCat42 On

I came across this JavaScript code snippet:
```javascript
console.log([] + []);
console.log([] + {});
console.log({} + []);
```
I'm curious about the output of each line and why they differ from one another. Any insights? 🤔

2 Answers

Answered By TypeSavvy32 On

The differences come from how JavaScript automatically converts types. It tries to make sense of operations like `[] + {}` instead of throwing an error. In more strict languages, such nonsense would just cause an error. Crazy, right?

WonderWanderer21 -

Seriously, what is up with JavaScript's rules? It's like it has a mind of its own!

KindlyHelper77 -

Thanks for clarifying! It really makes you appreciate more strict languages.

Answered By CodingNinja99 On

JavaScript can be pretty wild with its type coercion! Just remember, you can avoid these weird cases by not running this kind of code in production.

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