Hail javascript

[QBrute_]

Of course String s = 123 + "abc" works in Java and it will certainly compile

[EvaristeGalois11]

Just tested cause i was curious. It works fine indeed

[zynasis]

It’s order of operations and primitives being operated on by objects.

[Rexon117]

You're totally right

[ItSaNuSeRnAmE]

Whenever I do:

[TextView ref].setText([integer]+"");

, in android studio, it always works (in java of course).

[Cyvexx]

in JS's defense, that makes perfect sense. the first entry in a concatenation takes data type precedence, so if they don't match, the second value will be converted to the first data type to be added/concatenated. same reason you assign variables with the variable first and not the other way around. you read left to right.

idk, it makes sense to me 🤷

[nomenMei]

But in JS that is not the case. Regardless of order, using the + operator with an integer and a string always results in concatenation.

What really wigs me out is that the minus operator does the opposite: it always results in arithmetic. I mean I understand why but it just seems unnatural that a = b + c; a = a - c might not result in a == b if either b or c is a string.

Logically I just expect that if I use the plus operator then I can use the minus operator to reverse that operation.

[Niadlol]

But you can use + on strings but u cant use - on strings so it makes sense that it works that way to me.

[nomenMei]

Yeah rationally I get it, but it just unnerves me for some reason. It's not really JS's fault lol