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Function std.array.join

Eagerly concatenates all of the ranges in ror together (with the GC) into one array using sep as the separator if present.

ElementEncodingType!(ElementType!RoR)[] join(RoR, R) (
  RoR ror,
  R sep
if (isInputRange!RoR && isInputRange!(Unqual!(ElementType!RoR)) && isInputRange!R && (is(immutable(ElementType!(ElementType!RoR)) == immutable(ElementType!R)) || isSomeChar!(ElementType!(ElementType!RoR)) && isSomeChar!(ElementType!R)));

ElementEncodingType!(ElementType!RoR)[] join(RoR, E) (
  RoR ror,
  scope E sep
if (isInputRange!RoR && isInputRange!(Unqual!(ElementType!RoR)) && (is(E : ElementType!(ElementType!RoR)) || !autodecodeStrings && isSomeChar!(ElementType!(ElementType!RoR)) && isSomeChar!E));

ElementEncodingType!(ElementType!RoR)[] join(RoR) (
  RoR ror
if (isInputRange!RoR && isInputRange!(Unqual!(ElementType!RoR)));


ror An input range of input ranges
sep An input range, or a single element, to join the ranges on


An array of elements

See Also

For a lazy version, see joiner


writeln(join(["hello", "silly", "world"], " ")); // "hello silly world"
writeln(join(["hello", "silly", "world"])); // "hellosillyworld"

writeln(join([[1, 2, 3], [4, 5]], [72, 73])); // [1, 2, 3, 72, 73, 4, 5]
writeln(join([[1, 2, 3], [4, 5]])); // [1, 2, 3, 4, 5]

const string[] arr = ["apple", "banana"];
writeln(arr.join(",")); // "apple,banana"
writeln(arr.join()); // "applebanana"


Andrei Alexandrescu and Jonathan M Davis


Boost License 1.0.