set.delete method name

Mark S. Miller erights at
Tue Feb 28 11:54:20 PST 2012

I appreciate the feedback, but I do not understand the rationale. Is it
just to avoid needing to say


when supporting old browsers without an ES5->ES3 translation step? If there
is no other downside, I'm inclined to stick with "delete".

On Tue, Feb 28, 2012 at 11:49 AM, Adam Shannon <adam at> wrote:

> I agree that it should be named "remove" rather than delete.
> On Tuesday, February 28, 2012, Yehuda Katz wrote:
>> Just catching up on this discussion. I should point out that this problem
>> applies to Map and possibly other collections as well.
>> Speaking as someone who is looking to use these features today, I hit
>> this problem immediately. Ember.js already has a Map; we can reliably
>> generate a unique id for any object (by stashing it on the object; ok for
>> our cases), and have a reliable way to generate guids for non-Objects.
>> Ideally, we'd like to be able to say something like: `if(typeof Map !==
>> "undefined") { Ember.Map = Map; }` (although we'd probably do more checks
>> because shims in general have worse performance characteristics).
>> Unfortunately, because of the `delete` problem, we cannot do this.
>> Because we are unwilling to monkey-patch Map directly, we will have to
>> create a shim object that delegates to the Map.
>>  I'm sympathetic to the "let's not make choices based on old broken
>> browsers", but let's be fair here. The name `remove` is perfectly clear. In
>> five years, nobody is going to think twice about that API, and web
>> developers won't think twice about it today. Using a clear name that also
>> happens not to run afoul of older browsers for shim purposes isn't caving
>> to the past: it's being pragmatic about helping people adopt a new feature
>> with very little cost.
>> Yehuda Katz
>> (ph) 718.877.1325
> --
> Adam Shannon
> Developer
> University of Northern Iowa
> Sophomore -- Computer Science B.S. & Mathematics
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> es-discuss mailing list
> es-discuss at

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