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Re: let and {}

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On 03.01.2019 16:46, Luca wrote:
ease bear with me if I ask this honorable forum:
> 
> Inside a class:
> 
>          this.state = {
>              gameState: "ready",
>              wrongGuesses: [],
>              correctGuesses: []
>          };
> 
>             :
> 
>          let { wrongGuesses, correctGuesses } = this.state;
> 
> Questions:
> 
> 0) what's the meaning of curly braces there?
> 
> 1) why does this work? i.e. why are wrongGuesses and correctGuesses 
> being assigned correctly?
> 
> 2) what's the scope of wrongGuesses and correctGuesses?
> 
> 3) why isn't this.gameState "interfering" with what needs to be asigned 
> to what?
> 
> 4) is this an ES5 or ES6 feature?

See whether 
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment#Object_destructuring 
and 
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/let 
helps.

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let and {} Luca <luca@please.nospam.it> - 2019-01-03 10:46 -0500
  Re: let and {} Jon Ribbens <jon+usenet@unequivocal.eu> - 2019-01-03 16:31 +0000
    Re: let and {} Luca <please_no@spam.it> - 2019-01-03 13:13 -0500
      Re: let and {} Jon Ribbens <jon+usenet@unequivocal.eu> - 2019-01-03 20:07 +0000
        Re: let and {} Luca <luca@please.nospam.it> - 2019-01-03 23:45 -0500
  Re: let and {} Martin Honnen <martin.honnen@gmx.de> - 2019-01-03 17:32 +0100
    Re: let and {} Luca <please_no@spam.it> - 2019-01-03 13:14 -0500

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