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.
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JSTests
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es6
/
WeakSet_constructor_invokes_add.js
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function
test
()
{
var
passed
=
false
;
var
_add
=
WeakSet
.
prototype
.
add
;
WeakSet
.
prototype
.
add
=
function
(
v
)
{
passed
=
true
;
};
new
WeakSet
([
{
}
]);
WeakSet
.
prototype
.
add
=
_add
;
return
passed
;
}
if
(!
test
())
throw
new
Error
(
"Test failed"
);