Data commit

Task/Associative-array-Creation/Chapel/associative-array-creation.chapel

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+// arr is an array of string to int. any type can be used in both places.
+var keys: domain(string);
+var arr: [keys] int;
+
+// keys can be added to a domain using +, new values will be initialized to the default value (0 for int)
+keys += "foo";
+keys += "bar";
+keys += "baz";
+
+// array access via [] or ()
+arr["foo"] = 1;
+arr["bar"] = 4;
+arr("baz") = 6;
+
+// write auto-formats domains and arrays
+writeln("Keys: ", keys);
+writeln("Values: ", arr);
+
+// keys can be deleted using -
+keys -= "bar";
+
+writeln("Keys: ", keys);
+writeln("Values: ", arr);
+
+// chapel also supports array literals
+var arr2 = [ "John" => 3, "Pete" => 14 ];
+
+writeln("arr2 keys: ", arr2.domain);
+writeln("arr2 values: ", arr2);