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.
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JSTests
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es6
/
Promise_Promise[Symbol.species].js
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function
test
()
{
var
prop
=
Object
.
getOwnPropertyDescriptor
(
Promise
,
Symbol
.
species
);
return
'get'
in prop
&&
Promise
[
Symbol
.
species
]
===
Promise
;
}
if
(!
test
())
throw
new
Error
(
"Test failed"
);