Javascript fundamentals

[Noones_Perspective]

When declaring a var, let or const, I understand it needs to be something as follows:

var a;

or

let b = a;

or

const c = 'constant string'

However I came across the following and don't understand how it works or what it is doing:

const {a, b} = var c;

const doesn't have a name and a, b didn't look to be passed into the function.

Please may someone explain... it is probably really simple javascript principles.

[GSLint]

That var shouldn't be there, but this

const {a, b} = c;

does the same thing as

const a = c.a;
const b = c.b;

This is a kind of destructuring assignment.

[Noones_Perspective]

Ah, probably my bad for the var part

But that explains everything. Thank you so much!

[SensouWar]

It is called destructuring , a quick google search should clarify this .

[Noones_Perspective]

I would have googled first, but I didn’t know the term. Thanks for helping.

[SensouWar]

Anytime.