Proposal: throw null operator

Isiah Meadows isiahmeadows at gmail.com
Sun Feb 24 16:03:12 UTC 2019


Not sure what the benefit is over just `if (value != null) throw value`,
especially for this niche of a use case.
On Sun, Feb 24, 2019 at 09:46 IdkGoodName Vilius <
viliuskubilius416 at gmail.com> wrote:

> I am proposing a syntatic sugar, which would check if throw value is not
> null, or not undefined. It would make less typing and no if, for throw
> statements. Syntax is simple. Here's an example of it:
> ```js
> throw? e
> ```
> This is basically equivalent to:
> ```js
> if(e !== null && e !== undefined) throw e
> ```
> What's the purpose of that? Well, in some node js modules, error as null,
> or undefined is sometimes passed.
> Example of that is:
> ```js
> const {exec} = require('child_process')
> exec('...', {cwd: '...'}, (err, stdout, stderr) => {
>     if(err !== null) throw err
> })
> ```
>
>
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