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.
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JSTests
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es6
/
miscellaneous_subclassables_Boolean_is_subclassable.js
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function
test
()
{
class
C extends
Boolean
{}
var
c
=
new
C
(
true
);
return
c instanceof
Boolean
&&
c
==
true
;
}
if
(!
test
())
throw
new
Error
(
"Test failed"
);