proposal: DataView.prototype.toString(start = 0, end = this.length, enc= "utf8")

[Ken Russell]

If DataView's methods were faster, would this eliminate the need for this
addition?

In the V8 engine, some recent work significantly improved DataView's
performance. See http://crbug.com/225811 for details.

-Ken


On Tue, Aug 21, 2018 at 7:02 PM Isiah Meadows <isiahmeadows at gmail.com>
wrote:

> You might be interested in some of the things I have here:
>
>
> https://github.com/isiahmeadows/array-additions-proposal/blob/master/README.md
>
> I'm not quite to the point of pushing TC39 to consider, but after I get
> around to sorting it better, I'd love to see all of them eventually
> implemented.
>
> Note that for some common cases, like to ASCII or UTF-8 when no character
> in the string is above U+007F or to UCS-2/UTF-16 when at least one
> character is above that, it's a trivial `memcpy` for multi-character
> strings.
> On Tue, Aug 21, 2018 at 18:32 Ali Rahbari <rahbari at gmail.com> wrote:
>
>> When working with binary data, reading string from buffer is a necessity.
>> For example when deserializing bson data in the browser.
>>
>> Most of node.js buffer methods are available in DataView except toString.
>> As a workaround currently it's done by reading the buffer byte by byte and
>> convert each of them to corresponding character with String.fromCharCode()
>> and then joining the result.
>>
>> This can be done much faster in native code.
>>
>> DataView.prototype.toString(start = 0, end = this.length, encoding=
>> "utf8")
>>
>> DataView.prototype.writeString(string, offset = 0, length =
>> string.length, encoding = "utf8")
>>
>> --
>> Ali Rahbari
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>>
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