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Just a reminder that JavaScript was developed in 10 days, the same amount of time i spend fixing bugs when i just miss a “,”
The world was made in 7 days, so it should have been 3 days left to develop js
This sounds more credible than the big bang theory. I no longer believe in science
Physics was written in JavaScript?
…checks out.
The tech equivalent of inventing leaded gasoline.
This is one of the most educational and entertaining reads on the internet, if you are into that kind of thing:
Has anyone actually read through that? Reading the first few examples and it’s just not understanding how languages work half of the time:
!!"false" == !!"true"; // -> true !!"false" === !!"true"; // -> trueWow, no shit, non-empty string coerces to true, who would’ve guessed! Did you know that
!!"bullshit" === !!"true"as well? Mind=blown.NaN === NaN; // -> falseAgain, no shit, that’s in the NaN specification and the page even mentions it, so why even include it?
Which is why I’m of the opinion that dynamically typed languages are evil. !!“false” should either be caught at compile time or raise an exception.
I’m thoroughly convinced that the only use of dynamically typed languages is to introduce bugs
I am with you. To me these are non-obvious details, just a bug waiting to silently happen in production.
Why? IMO that’s perfectly valid. The various type coercions are sometimes crazy, but IMO the rule that non-empty string is coerced to
trueand empty string tofalseis very simple to follow. The snippet is not even a gotcha, I don’t see anything worth failing over. Putting “true” or “false” in a string doesn’t change that.I am dumb. The more things I need to think about when reading code that is not the logic of the code, the worse it is. Any time I have to spend thinking about the peculiarities of the way the language handles something is time wasted.
I’ll give a very simple example, think like you’re trying to find a bug. Assume we’re in a dynamic language that allows implicit conversion like this. We can write our code very “cleanly” as follows:
if(!someVar) doSomething();-> ok, now we gotta check where someVar’s value is last set to know what type of data this is. Then I need to remember or look up how those specific types are coerced into a bool.
When trying the same code in a statically typed language that doesn’t do implicit coercion that code will fail to run/compile so probably you’ll have something like this:
if(someVar.length() == 0) doSomething();-> this time I can just look at the type of someVar to see it’s a string and it’s clear what the condition actually means.
The second option is both easier to read and less bug prone even without the type system. It takes maybe 3 seconds longer to type, but if your productivity in coding is that limited by typing speed then I envy you
NaN===NaNis the fault of the floating point standard tho i believe.Yes, that’s my point.
Also, a huge proportion of the list is just not understanding IEEE floats behaviour and blaming the language for it. Exactly like this post is doing. All those weird number things js does is because it only uses floats for everything and every language that uses floats will behave the exact same way.
So, uh, first example, the developer decided instead of comparing based on type, he rather converts the values? Why?!
Ah. The shork did the math. This explains a lot.
You just have to look at the problem from a different angle.
Not enough alcohol involved.
What is this image from?
This image is fan art of Gawr Gura from Hololive EN’s 1st Gen VTuber group HoloMyth.
She is their most subscribed talent and is known for being computationally challenged.
Thanks!
Approach the problem from different angle!
