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LibJS: Call Array.prototype.findIndex() callback for empty elements

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If the array value at the current index is empty, the callback will
be called with undefined as value.
This commit is contained in:
Linus Groh 2020-04-28 18:10:40 +01:00 • committed by Andreas Kling
parent 823cc7bc1c
commit 3152559422
3 changed files with 27 additions and 7 deletions
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12
Libraries/LibJS/Runtime/ArrayPrototype.cpp
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@ -489,12 +489,12 @@ Value ArrayPrototype::find_index(Interpreter& interpreter)
auto array_size = array->elements().size();
for (size_t i = 0; i < array_size; ++i) {
if (i >= array->elements().size())
break;
auto value = array->elements().at(i);
if (value.is_empty())
continue;
auto value = js_undefined();
if (i < array->elements().size()) {
value = array->elements().at(i);
if (value.is_empty())
value = js_undefined();
}
MarkedValueList arguments(interpreter.heap());
arguments.append(value);