On Tuesday, 29 August 2017 at 18:39:03 UTC, Ali Çehreli wrote:
On 08/29/2017 11:20 AM, Vino.B wrote:

string[] a = ["test1", "test2", "test4"];
string[] b = ["test2", "test4"];

Required output: "test1"

You're looking for setDifference:

https://dlang.org/phobos/std_algorithm_setops.html#.setDifference

Ali

Hi,

 I tried the setDifference but does seem to be working as expected

import std.stdio, std.array, std.algorithm;
string[] a = ["test4", "test3", "test2", "test1"];
string[] b = ["test2", "test4"];
void main ()
{
auto m = setDifference(a,b);
writeln(m);
}

Output : Required output ["test3", "test1"]

["test3", "test2", "test1"]

From,
Vino.B

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