On Sunday, 1 November 2020 at 09:14:35 UTC, Vino wrote:
[
Tuple!(string, string)("DEV", "D1"),
Tuple!(string, string)("DEV", "default"),
Tuple!(string, string)("DEV", "D1"),
Tuple!(string, string)("QAS", "Q1"),
Tuple!(string, string)("QAS", "Q1"),
Tuple!(string, string)("QAS", "default"),
Tuple!(string, string)("PRD", "P1"),
Tuple!(string, string)("PRD", "P1"),
Tuple!(string, string)("PRD", "default")
]
Required Output
[
Tuple!(string, string)("DEV", "D1"),
Tuple!(string, string)("QAS", "Q1"),
Tuple!(string, string)("PRD", "P1"),
]
From,
Vino.B
I can only test with Phobos (no asdf on run.dlang.io), but isn't
just normal sort and uniq what you want?
data[]
.array
.sort
.uniq!((tup1, tup2) => tup1[0] == tup2[0]);
https://run.dlang.io/is/a3KHaE
Sorting "default" values can be tricky but they conveniently cede
to explicit D1/Q1/P1 values because of ASCII. Otherwise you would
have to provide different sort and uniq predicates.
