Conditional object properties

Reinis Ivanovs dabas at untu.ms
Wed Nov 2 14:42:45 UTC 2016


No need for new syntax, you can just do this:

```
{...cond ? {prop: value} : null}
```

I find it about the same in readability.

On Wed, Nov 2, 2016 at 2:18 PM, Luke Mitchell <luke at enki.com> wrote:

> Hi all,
>
> I often come across a situation where I wish to extend an object
> (usually an argument for an API request) if a particular condition is
> satisfied, such as the presence of a function parameter. Currently the
> only way to do this is by assigning the object to a variable, checking
> the condition using an `if` statement and then extending the object. I
> am proposing the inclusion of an operator that allows a property to be
> included, subject to a particular condition, inside the object
> definition.
>
> The operator looks like this:
>
> ```
> let obj = {
>   cond ? prop: value
> };
>
> ```
>
> The operator could also be used with a block statement, allowing
> multiple properties to be included:
>
> ```
> let obj = {
>   cond ? {
>     prop1: value1,
>     prop2: value2
>   }
> };
> ```
>
> I have created a draft proposal and would love to hear any thoughts
> you have on the matter. You can find it on my GitHub, at the link
> below.
>
> https://github.com/lukem512/proposal-condition-property-definitions
>
> Kind regards,
> Luke
> _______________________________________________
> es-discuss mailing list
> es-discuss at mozilla.org
> https://mail.mozilla.org/listinfo/es-discuss
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.mozilla.org/pipermail/es-discuss/attachments/20161102/dcbac5c7/attachment.html>


More information about the es-discuss mailing list