Repository navigation
Serious Bug in v10.x.x : Function Map.values truncates elements #27882
Description
Activity
- changed the title
[-]Function Map.values truncates elements[/-][+]Serious Bug in v10.x.x : Function Map.values truncates elements[/+]on May 26, 2019 I think this was fixed in 0afcb9a (aka v8/v8@88f8fe1). I’ll attempt a backport, that seems doable to me.
I don’t think this is a super-serious bug – to be clear, what is broken is the display of
m.values()when usingconsole.logorutil.inspect(), not the actual functionality ofm.values(), as far as I can tell.Reacted by Nikita Skovoroda- added a commit that references this issue
on May 26, 2019 - added a commit that references this issue
on Jun 6, 2019
Version: v10.15.3 (10.x.x)
Platform: Linux 4.15.0-50-generic #54-Ubuntu SMP Mon May 6 18:46:08 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
This is the code that demonstrates the problem
const m = new Map();
m.set(1,'a');
m.set(2,'b');
m.set(3,'c');
m.set(4,'d');
m.set(5,'e');
m.set(6,'f');
//before delete [Map Iterator] { 'a', 'b', 'c', 'd', 'e', 'f' }
console.log('before delete',m.values());
m.delete(1);
//after delete [Map Iterator] { 'c', 'd', 'e', 'f' }
console.log('after delete',m.values());
//element 'b' has been truncated
It's probably more v8 problem than node itself (in node v12.x.x this is fixed) but the truth is ... this is very serious bug in node v10.x.x and I had to jump out of version 10.x.x because of this.