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1.5 Applicability Statement

This document specifies a set of extensions to the [ECMA-262/5] specifications. The extensions in this document provide access to some features that are unique to Windows Internet Explorer 9, Windows Internet Explorer 10, and Internet Explorer 11 when it is operating in IE9 Mode.

Section 2.9 specifies extensions to the ECMAScript Language Specification 5.1 Edition [ECMA-262/51] starting in IE10 Mode.

Section 2.9.4 specifies additional methods of the Object prototype object of [ECMA-262/51] (see Section 15.2.4) in IE11 Mode.

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