IDL enumeration & String.prototype.normalize

Domenic Denicola domenic at domenicdenicola.com
Tue Aug 6 08:50:19 PDT 2013


Right, I think both are indeed enums at some conceptual level. IDL gives that concept a name; ES does not. It would be nice if IDL enums followed ES semantics, of doing `ToString(value)` (which may throw a `TypeError`) and then throwing a `RangeError` if outside the allowed range.

However, the [definition of `RangeError`][1] probably needs some updating in that case:

> Indicates a numeric value has exceeded the allowable range.

[1]: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-15.11.5.2



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