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Add species note to normative conventions #157

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@codehag codehag commented Oct 17, 2024

See: tc39/ecma262#3450

Wasn't sure how much detail we wanted here.


New Builtins, and any existing builtins that do not currently support @@species constructors should not be updated to support extensions via @@species. The @@species symbol can be made available but should not be referenced elsewhere.

NB: This convention is new as of 2025, TypedArray, SharedArrayBuffer, and ArrayBuffer have been updated to follow it. Array, Promise, and RegExp were not web compatible to change. No other builtins were using it at the time of update.
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NB: This convention is new as of 2025, TypedArray, SharedArrayBuffer, and ArrayBuffer have been updated to follow it. Array, Promise, and RegExp were not web compatible to change. No other builtins were using it at the time of update.
NB: This convention is new as of 2025; TypedArray, SharedArrayBuffer, and ArrayBuffer have been updated to follow it. Array, Promise, and RegExp were not web compatible to change. No other builtins were using it at the time of update.

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