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Date: Fri, 5 Apr 2019 10:30:38 +0200
Message-ID: <CABdc3Wogg6YkbSXpuNrEr93cBzfAuy6XBxpVi6py4OveMEzW0w@mail.gmail.com>
To: CHU Zhaowei <me@jhdxr.com>
Cc: Rowan Collins <rowan.collins@gmail.com>, Derick Rethans <derick@php.net>, 
	PHP internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary="00000000000004ef5f0585c44e05"
Subject: Re: [PHP-DEV] [RFC] Spread Operator in Array Expression v0.2
From: michal@brzuchalski.com (=?UTF-8?Q?Micha=C5=82_Brzuchalski?=)

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pt., 5 kwi 2019 o 08:56 CHU Zhaowei <me@jhdxr.com> napisa=C5=82(a):

> Here is a MDN document for spread operator in JS:
> https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operato=
rs/Spread_syntax#Spread_in_array_literals
> and hope you find more useful examples.
>

The next paragraph in MDN document is spread operator for object literals
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators=
/Spread_syntax#Spread_in_object_literals
Now JavaScript objects can be used like our array with keys and I simply
don't understand why we cannot preserve keys, like in JS object literals

Sample code:
JavaScript: var a =3D {foo: true, ...{bar: "baz"}}; // become {foo: true,
bar: "baz"}
and you can access it via a.foo or as an array dimension a['foo'] - more or
less like PHP arrays, right with key as a dimenrsion in array

Your RFC covers:
PHP: $a =3D [1, 2, 3, ...[4, 5, 6]]; // resulting [1, 2, 3, 4, 5, 6]

What would happen in:
a) PHP: $a =3D ['foo' =3D> true, ...[4, 5, 6]]; // ??
b) PHP $a =3D ['foo' =3D> true, ...['bar' =3D> 'baz']] // error ??

Don't get me wrong I just see spread operator in function arguments a
different feature which allows working with variadic parameters,
and we're talking about the different feature here which only use the same
operator, right?

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