Javascript is Bananas #javascript #programming

[VictorMartins]

typeof NaN
"number"

i love js

[FrankJonen]

That's the shit that got us TypeScript.

[Llorx]

NaN is a typeof number because in JS every number is a IEEE 754 standard (which almost every language has, for example C when you define a floating point, or Java, or Perl, or Python, or Rust).

A number is NaN when all exponent bits are 1 and all fraction bits are anything but 0 (as all 0 means Infinity which is also standarized in IEEE754), so NaN is a number type which its bits defines it as "not a number" xD

[thp]

I can see why everyone hates Javascript.

[KaramAlayan]

Me (a python developer) watching Javascript content idk why
Edit : update little did i know what will happen one month later i am learning Javascript now lol specifically react 😅

[evanbelcher]

Not even as bad as the truthiness/falsiness stuff. Like an empty string being falsy but an empty array being truthy. Just a painful language.

[Dylan_thebrand_slayer_Mulveiny]

Next lesson. What's the difference between:

let a = 0
let b = ++a
console.log(a, b)

versus

let a = 0
let b = a++
console.log(a, b)

The answer may surprise you.

[DEBO]

This so why string template literals are the only way to go, and we can handle the calculations in a separate function before we need to display the string equivalent

[olhoTron]

One of the few things PHP got right was having separate sum and concatenate operators
...wow, I never tought I would say something good about PHP... this is so strange... lemme do this again... "arrays/maps being treated by default as values instead of references is awesome"... what a strange feeling

[captheobbyist]

i see lots of people hate JavaScript just for this but i cant get them

you never really use the addition operator with both strings and numbers, so you barely even encounter this confusion while you're coding

[Liubomyr_The_Great]

I, personally, like the Australian accent Banana more. It just sounds happier

[NightUndead]

"Interesting" is one word for it xD

[letsjustgetjaked]

Love that the subtitles are right over the code lol

[Atkam.]

What sound a sheep makes
JavaScript: baNaNa

[GottZ]

to be perfectly honest i much prefer using + over parseFloat / parseInt for string to number convertion.

[RS-fzps]

Very good explanation of that one famous article that keeps making the rounds.

[Joe-twlh]

Why did I laugh so hard at banana. Lo😂

[razorxxxiv]

Actually if you started with a number it will treat it as an arithmetic operation

[aminzarei]

Always use converter functions like Number("") instead of operators like instead of + in any language if you wanna work in a dev teams.

[nifegun]

My favorite thing about js is that any number / 0 is infinity, not undefined. And the absolute best oart about it, is that technically it works, and it enrages hardcore math nerds so much.