That’s it. That’s the meme.
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To make it even worse
Javascript’s type coercion is rather insane, yes, but there is an actual, practical reason it’s done. JS, having been designed to be run in web browsers, wants to avoid blowing up and crashing at all costs. If it gets an unusual type comparison, usually the result of a bug, it tries to return something, such that the script can continue running if at all possible. In JS’ mentality, keeping a page running, even if it might not completely function properly, is preferable to throwing an unhandled exception and completely crashing it.
Whether or not that is the right approach is debatable, but there is at least some logic to it. Personally, I think that the proliferation of Node letting JS run outside of browsers exacerbates a lot of JS’ issues, but TypeScript does a lot to make it look like a more sensible language.
Hey OP, do you mind checking if your book explains the type coercions that are used with the
+operator? I remember it also being mind-boggling, so I was hoping you book could demystify it too.I don’t recall if it covers that sadly. I read it months ago and this part stood out to me.
This makes it make so much more sense…
Its not really insanity, just a lot of hidden function calls
I mean, it is the basic concept of truthiness. At least they let you use strict equal.
why convert boolean to integer instead of converting the other operand to boolean? it doesn’t make sense.
But then why 2 == true if true is converted to 1
3 - 1 // -> 23 + 1 // -> 4'3' - 1 // -> 2'3' + 1 // -> '31'2 is ‘truthy’, or rather, not ‘falsy’.
I’m not even kidding.
Is that a tear on the “again”?
Or sweat. Either is appropriate there.
Hello from Perl! Looks reasonable to me!
Yes, we should all use rigid types. Name me one language you actually like writing quickly with that has types?
Pyth-oh. Bash-oh. Lisp-oh. Perl-oh. Oh yeah… typed languages suck because of all the boiler
Edit: Fine, Python / Lisp / Perl are all technically “typed” languages, but I ask you what’s point of throwing type errors at runtime. Javascript and Rust actually have it right here that the code is either going to run, or it simply isn’t. No pussyfooting letting it run first to throw complaints
Python. Don’t know why you excluded it.
I didn’t, I’m using the current nomenclature: https://en.wikipedia.org/wiki/Python_(programming_language)#History (last paragraph)
I don’t see the image and the last paragraph sais nothing about types.
But Python is a strongly typed language. It’s right there in the info box.
Kotlin is pretty good
Zig
