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be9b4e2157fc5a81e712f3ea4e4907d0c2890556
/
.
/
JSTests
/
es6
/
well-known_symbols_Symbol.isConcatSpreadable.js
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function
test
()
{
var
a
=
[],
b
=
[];
b
[
Symbol
.
isConcatSpreadable
]
=
false
;
a
=
a
.
concat
(
b
);
return
a
[
0
]
===
b
;
}
if
(!
test
())
throw
new
Error
(
"Test failed"
);