GNU bug report logs - #9151
js-mode indentation doesn't recognize brace-less function expressions

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Štěpán Němec <stepnem <at> gmail.com>
To: bug-gnu-emacs <bug-gnu-emacs <at> gnu.org>
Subject: js-mode indentation doesn't recognize brace-less function expressions
Date: Fri, 22 Jul 2011 21:28:45 +0200

GNU Emacs 24.0.50.6 (i686-pc-linux-gnu) of 2011-01-15 on headley

In JavaScript, the following is a valid function definition:

function foo ()
    a.somewhat().complicated()
    .computation()

but `js-mode' currently indents it like this:

function foo ()
a.somewhat().complicated()
    .computation()

-- 
Štěpán

Message #8 received at 9151 <at> debbugs.gnu.org (full text, mbox):

From: Knut Olav Bøhmer <bohmer <at> gmail.com>
To: 9151 <at> debbugs.gnu.org
Subject: bug#9151: js-mode indentation doesn't recognize brace-less function
 expressions
Date: Wed, 21 Aug 2019 09:54:18 +0200

[Message part 1 (text/plain, inline)]

This bug is probably more important to day then 8 years ago because of the
widely used  arrow function with concise body syntax as documented here:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions#Function_body

Right:
const something = () =>
      indent_like_this();

Wrong:
const something = () =>
not_indent_like_this();

-- 
Knut Olav Bøhmer

[Message part 2 (text/html, inline)]

Message #11 received at 9151 <at> debbugs.gnu.org (full text, mbox):

From: Jakub Ječmínek <kuba <at> kubajecminek.cz>
To: Knut Olav Bøhmer <bohmer <at> gmail.com>
Cc: 9151 <at> debbugs.gnu.org
Subject: Re: bug#9151: js-mode indentation doesn't recognize brace-less
 function expressions
Date: Mon, 03 Jun 2024 19:48:01 +0000

Knut Olav Bøhmer <bohmer <at> gmail.com> writes:

> Right:
> const something = () =>
>       indent_like_this();
>
> Wrong:
> const something = () =>
> not_indent_like_this();

This indents correctly for me.


Štěpán Němec <stepnem <at> gmail.com> writes:

> In JavaScript, the following is a valid function definition:
>
> function foo ()
>     a.somewhat().complicated()
>     .computation()
>
> but `js-mode' currently indents it like this:
>
> function foo ()
> a.somewhat().complicated()
>     .computation()

I know virtually nothing about JavaScript but your example function
doesn't seem valid.  If you add curly braces and set `js-chain-indent'
to t then it works fine.

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