Using an IIFE in Javascript can help solve strange scope issues #shorts

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[yadusolparterre]

okay that could have been useful a few years ago. Butnow that we have "let", this is just a party trick

[IainSimmons]

Every time a dev uses var instead of const or let, a puppy dies.

[thekeyboard]

thank you CaptainSparklez for the coding tip

[fazalmohamed]

Also setTimeout can have morethan 2 parameter so we can pass our variable like that too

[Revadike]

I remember these times. Thank god es6 happened.

[ChadGauthier]

I'm surprised to be learning new js still, great examples bro

[Mark-njzh]

That's really neat, thanks for sharing!

[bestapps]

The final result past like a lighting, I have to see again, bro?

[shiekhpalace]

It's like useEffect hook in react 😂

[v.]

happy birthday!! 🎉 you look younger than me though 🙂

[MaxProgramming]

Is an IIFE necessary for this use-case? I mean isn't it possible to create a normal function and just call it with the parameter?

[flamehiro]

X.x why not just put the loop inside the setTimeout. It pretty obvious it would be undefined xD. Oh was the intent to have a delay for each print?

[minegamer]

What theme are you using in the editor?

[cooldude]

Hi Dev i am a newbie, Can you suggest me which programming language should I start with

[akshaygadekar]

I didn't understand using let instead of var, how issue could have solved? Basically still we must get undefined, can someone please tell me...

[archsapostlestapostleofth]

Time of unfunny jokes: "what's this?"

[the_xyzt_eht]

"Javascript", just shit the anonymous funcs here and there and that's it.

[hadawardgz]

The tip is to stop using *var* in the middle of 2022 as there is no reason to, and make good use of good practices, for..of exists for a reason and setTimeout can take arguments to be passed to the callback, II(A)FE is only useful if you are not using ES Modules so as not to pollute the global environment and must be used in the global scope, all your code must be inside IIFE.

"use strict";

(/* async */ () => {
const names = ["Bob", "Sally"];

for (const name of names) {
setTimeout(console.log, 1000, name);
}
})();

[YamiSuzume]

Well, just simply never use var since it's bad practice