parentheses before function syntax js meaning

Question

I came across with a piece of code with new syntax for me, What this syntax means in js? I mean this parentheses at the beginning:

(function () {
   //...
})()

it's a function that will execute immediately when the script loads — IrkenInvader, May 14 '20 at 18:47
Reference: https://developer.mozilla.org/en-US/docs/Glossary/IIFE — joy08, May 14 '20 at 18:48
Immediately Invoked Function Express, also knows as an IIFE (pronounced as *iffy*) — Emiel Zuurbier, May 14 '20 at 18:48
please first google about it, it is a common knowledge which you will find everywhere. Which saves everyone's time. — pramod singh, May 14 '20 at 18:54

score 1 · Answer 1 · answered May 14 '20 at 18:50

1

It's called IIFE

basically, you can define a a function and invoke it immediately without declaring a name for it.

answered May 14 '20 at 18:50

dor272

1 Answers1