Export (0) Print
Expand All
Expand Minimize

2.1.22 [ECMA-262/5] Section, Array.prototype.indexOf ( searchElement [ , fromIndex ] )


The specification states:

NOTE The indexOf function is intentionally generic; it does not require that its this value be an Array object. Therefore it can be transferred to other kinds of objects for use as a method. Whether the indexOf function can be applied successfully to a host object is implementation-dependent.

IE9 Mode, IE10 Mode, and IE11 Mode (All Versions)

The indexOf method can be applied to a host object; however, some host objects may reject such an application.

© 2015 Microsoft