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LibJS: Treat missing arg in Array.prototype.{indexOf,lastIndexOf}() as undefined

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Linus Groh 2020-05-22 17:34:52 +01:00 • committed by Andreas Kling
commit 6a4280e6e5
Notes: sideshowbarker 2024-07-19 06:14:40 +09:00
3 changed files with 7 additions and 2 deletions
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4
Libraries/LibJS/Runtime/ArrayPrototype.cpp
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@ -357,7 +357,7 @@ Value ArrayPrototype::index_of(Interpreter& interpreter)
return {};
i32 array_size = static_cast<i32>(array->elements().size());
if (interpreter.argument_count() == 0 || array_size == 0)
if (array_size == 0)
return Value(-1);
i32 from_index = 0;
@ -411,7 +411,7 @@ Value ArrayPrototype::last_index_of(Interpreter& interpreter)
return {};
i32 array_size = static_cast<i32>(array->elements().size());
if (interpreter.argument_count() == 0 || array_size == 0)
if (array_size == 0)
return Value(-1);
i32 from_index = 0;