Inconsistent behavior in localeCompare

[Georgezxh]

JerryScript revision

2.4.0

Description

'a' is before 'A', so the first result should be negative number.
When adding parameter{ sensitivity: 'base' }, 'a' should be equal 'A', so the second result should be 0.

Test case

var a = 'a'; 
var b = 'A'; 
print(a.localeCompare(b));
print(a.localeCompare(b, 'en', { sensitivity: 'base' }));

Output

1
1

Expected behavior

-1(Or other negative number)
0

[matetokodi]

Fixing this would require the use of libICU or a similar library for proper unicode and locale support, which would increase the size of the jerryscript binary substantially, and as such it will not be done.

[zherczeg]

An icu would increase the library size too much.