Optional Curly Braces in JavaScript

Ed Saleh medozs at outlook.com
Sun Nov 3 01:02:23 UTC 2019

Hi Kai Zhu,
We can enforce curly braces through "good practice" JavaScript documentation style and eslint style. Making braceless JavaScript feature doesn't make it the best style to use, it just give more flexibility. And yes Jordan, it should actually be enforced to use curly braces in actual coding and that's what I do personally. All I want I want is to see JavaScript as wide spread as Python is. I know the reason why Python is famous today is for this specific reason, as it's easy to write for all types of people.

Thank you all,
From: es-discuss <es-discuss-bounces at mozilla.org> on behalf of kai zhu <kaizhu256 at gmail.com>
Sent: Saturday, November 2, 2019 8:06:50 PM
To: Jordan Harband <ljharb at gmail.com>
Cc: Bergi <a.d.bergi at web.de>; es-discuss <es-discuss at mozilla.org>
Subject: Re: Optional Curly Braces in JavaScript

unlike python, many [client-side] javascript programs require rollup/minification into a single dist-file.  removing curly braces (just like asi) makes that task more difficult.

this is also why esm-import-statements were a terrible idea. ppl like me would argue frontend-programs (which are mostly non-reusable anyways) should be written as single dist-files from the start rather than as modules -- and why python-programmers make terrible [frontend/ux] javascript-programmers in general.

On Sun, Nov 3, 2019, 04:48 Jordan Harband <ljharb at gmail.com<mailto:ljharb at gmail.com>> wrote:
My preference would be to make them required in the places they're currently optional :-)

Optional curly braces have led to many bugs, not just in JS (the "goto fail" SSL bug, for example) - why is this risk worth making it easier to write code on a whiteboard, where it doesn't need to be valid anyways?

On Sat, Nov 2, 2019 at 12:39 PM Bergi <a.d.bergi at web.de<mailto:a.d.bergi at web.de>> wrote:
Hello Ed!

> That would make JavaScript an easy to write on board language, where a language like python dominates because of it's simplicity in writing. This would make JavaScript spread into more areas in science, education and engineering.

You seem to not only want to make block syntax optional, but rather make
whitespace indentation significant. You might want to have a look at
CoffeeScript <http://coffeescript.org/#language> which is a
compile-to-JS language that uses this concept. Its function syntax is a
bit different from what you imagined though, most importantly it doesn't
offer any declarations.

kind regards,
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