Implementation
Ada

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Be useful.

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Please try to avoid dependencies to third-party libraries and frameworks.

Other implementations
x := map[string]int {"one": 1, "two": 2}
x = {"one" : 1, "two" : 2}
import java.util.Map;
import java.util.HashMap;
Map<String,Integer> x = new HashMap<>();
x.put("one", 1);
x.put("two", 2);
#include <map>
std::map<const char*, int> x;
x["one"] = 1;
x["two"] = 2;
x = {one: 1, two: 2}
var x = {"one": 1, "two":2}
(define x '(
    ("one" 1) 
    ("two" 2) 
    ("three" 3)))
var x = {
	"one": 1,
	"two": 2
};
$x = array( "one"=>1, "two"=>2 );
my %map = ( 
    name=>'Roboticus',
    "foo bar"=>"joe"
);
use std::collections::BTreeMap;
let mut x = BTreeMap::new();
x.insert("one", 1);
x.insert("two", 2);
int[string] x = ["one": 1, "two": 2];
uses fgl;
type TMap = specialize TFPGMap<String, Integer>;
var x: TMap;

begin
  x := TMap.Create;
  x['one'] := 1;
  x['two'] := 2;  
end.
x = Data.Map.Strict.fromList [ ("red", "FF0000"), ("blue", "0000FF") ]

x = %{"one" => 1, "two" => 2}
X = #{one => 1, "two" => 2.0, <<"three">> => [i, i, i]}.
x = {one = 1, two = 2}
System.Collections.Generic
Dictionary<int, string> x = new Dictionary<int, string>()
{
    (1, "Value1"),
    (2, "Value2")
};
val x = Map("a" -> 1, "b" -> 2, "c" -> 3)
(def x {"One" 1
	"Two" 2
	"Three" 3})
use std::collections::HashMap;
let x: HashMap<&str, i32> = [
    ("one", 1),
    ("two", 2),
].iter().cloned().collect();