A-M baby

Task/Filter/D/filter-1.d

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+import std.algorithm;
+
+void main() {
+    immutable data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
+
+    auto evens = data.filter!(x => x % 2 == 0)(); // lazy
+
+    assert(evens.equal([2, 4, 6, 8, 10]));
+}

Task/Filter/D/filter-2.d

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+import tango.core.Array, tango.io.Stdout;
+
+void main() {
+    auto array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
+
+    // removeIf places even elements at the beginnig of the array and returns number of found evens
+    auto evens = array.removeIf( ( typeof(array[0]) i ) { return (i % 2) == 1; } );
+    Stdout("Evens - ")( array[0 .. evens] ).newline; // The order of even elements is preserved
+    Stdout("Odds - ")( array[evens .. $].sort ).newline; // Unlike odd elements
+}