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LibJS: Trim initial whitespace in parseFloat

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Idan Horowitz 2021-06-06 02:32:14 +03:00 committed by Linus Groh
parent bda32e9440
commit bbf75d0bea
Notes: sideshowbarker 2024-07-18 14:29:45 +09:00 
Author: https://github.com/IdanHo
Commit: https://github.com/SerenityOS/serenity/commit/bbf75d0beab
Pull-request: https://github.com/SerenityOS/serenity/pull/7830
Reviewed-by: https://github.com/linusg ✅
1 changed files with 4 additions and 3 deletions
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7
Userland/Libraries/LibJS/Runtime/GlobalObject.cpp
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@ -202,12 +202,13 @@ JS_DEFINE_NATIVE_FUNCTION(GlobalObject::parse_float)
{
if (vm.argument(0).is_number())
return vm.argument(0);
auto string = vm.argument(0).to_string(global_object);
auto input_string = vm.argument(0).to_string(global_object);
if (vm.exception())
return {};
for (size_t length = string.length(); length > 0; --length) {
auto trimmed_string = input_string.trim_whitespace(TrimMode::Left);
for (size_t length = trimmed_string.length(); length > 0; --length) {
// This can't throw, so no exception check is fine.
auto number = Value(js_string(vm, string.substring(0, length))).to_number(global_object);
auto number = Value(js_string(vm, trimmed_string.substring(0, length))).to_number(global_object);
if (!number.is_nan())
return number;
}