`arguments` ordinary vs exotic difference

[isiahmeadows]

I'm guessing the builtin methods for arguments exotic objects described here don't apply to arguments ordinary objects, but it didn't seem very clear to me that the distinction was between strict arguments objects that were otherwise array-like ordinary objects and sloppy arguments exotic objects which have those builtin methods.

[allenwb]

On Sep 23, 2016, at 2:46 PM, Isiah Meadows notifications@github.com wrote:

I'm guessing the builtin methods for arguments exotic objects described here https://tc39.github.io/ecma262/#sec-arguments-exotic-objects don't apply to arguments ordinary objects, but it didn't seem very clear to me that the distinction was between strict arguments objects that were otherwise array-like ordinary objects and sloppy arguments exotic objects which have those builtin methods.

You shouldn’t have to guess. The first paragraph of 9.4.4 says: “Depending upon the characteristics of the function definition, its arguments object is either an ordinary object or an arguments exotic object. “

9.4.4.7 and 9.4.4.8 respectively create the ordinary and exotic variants of argument objects.

[allenwb]

On Sep 23, 2016, at 2:46 PM, Isiah Meadows notifications@github.com wrote:

I'm guessing the builtin methods for arguments exotic objects described here https://tc39.github.io/ecma262/#sec-arguments-exotic-objects don't apply to arguments ordinary objects, but it didn't seem very clear to me that the distinction was between strict arguments objects that were otherwise array-like ordinary objects and sloppy arguments exotic objects which have those builtin methods.

You shouldn’t have to guess. The first paragraph of 9.4.4 says: “Depending upon the characteristics of the function definition, its arguments object is either an ordinary object or an arguments exotic object. “

9.4.4.7 and 9.4.4.8 respectively create the ordinary and exotic variants of argument objects.