`String.prototype.symbolAt()` (improved `String.prototype.charAt()`)

C. Scott Ananian ecmascript at cscott.net
Fri Feb 14 12:35:15 PST 2014

yes, of course.  es6-shim is a large-ish collection of such.

However, it would be much better to use an implementation of
`String#at` which used substr and thus avoided creating and appending
a new string object.

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