Weirdest quirk of your main prog lang? - devRant

Ranter

Comments

15

metamourge

8181

5y

That's because parseInt takes two arguments.
It expects the 2nd argument to be the radix, but map passes the index instead.
Or in short, RTFM!!!
1

Ranchonyx

10426

5y

But why tho
1

AlgoRythm

50160

5y

This is NOT a quirk of JS, it's you misunderstanding the map function.

Here's your hit to why this happens:

['1','2','3'].map(function(){console.log(arguments)})
3

kamen

6923

5y

['1', '7', '11'].map(e => parseInt(e));

There, I fixed it.
1

soulevans07

847

5y

Oh I know full well why it does what it does... but still it's not a trivial mechanic even to seasoned JS developers.

You might call it quirky...
1

SortOfTested

20706

5y

@metamourge
See, if he was using webstorm, it would be screaming at him "USE THE RADIX, DERP"
1

kamen

6923

5y

@SortOfTested WebStorm is kind of too intrusive with things like this and IMO should relegate that to linters.
1

SortOfTested

20706

5y

@kamen
I don't disagree. Thankfully it's configurable.
1

c3r38r170

3686

5y

@kamen Arrow functions. <3
I will design an arrow function based lightsaber one day. You see, " =>{ " looks like the cut of a blade emitter.
(______)=>{-pshiuummmm->
1

PrivateGER

16594

5y

God fucking damn it
This bullshit again
This is the third time I see this here within ONE WEEK
READ THE GOD DAMN DOCUMENTATION OF parseInt!!!
1

soulevans07

847

5y

@PrivateGER, I did. You should read the comments before jumping to conclusions. I know what it does and why it does it but it's still a wierd line of code.

Related Rants

devRant © 2021 Hexical Labs LLC
Privacy Policy | Terms of Service