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Programming-Idioms

New implementation

Be concise.

Be useful.

All contributions dictatorially edited by webmasters to match personal tastes.

Please do not paste any copyright violating resource.

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

Other implementations
with Ada.Containers.Indefinite_Hashed_Maps;
with Ada.Strings.Hash;

use Ada.Containers;
for C in My_Map.Iterate loop
   Put_Line ("Key = " & Key (C) & ", Value = " & Element (C));
end loop;
(doseq [[k x] mymap]
  (println k ":" x))
#include <iostream>
for (const auto& [key, value]: mymap) {
	std::cout << "Key: " << key << " Value: " value << '\n';
}
#include <iostream>
for (const auto& kv: mymap) {
	std::cout << "Key: " << kv.first << " Value: " kv.second << std::endl;
}
foreach(var entry in map)
{
    Console.WriteLine("Key=" + entry.Key + ", Value=" + entry.Value);
}
import std.stdio;
int[string] mymap = ["Hello":1 , "World":2];
foreach (k, v; mymap)
    writeln("Key: ", k, " Value: ", v);
mymap.forEach((k, v) => print('Key=$k, Value=$v'));
for {k, x} <- mymap do
  IO.puts("#{k} => #{x}")
end
Enum.each(mymap, fn({k, x}) ->
  IO.puts("#{k} => #{x}")
end)
maps:fold(
	fun(K, V, ok) ->
		io:format("~p: ~p~n", [K, V])
	end, ok, MyMap).
import "fmt"
for k, x := range mymap {
  fmt.Println("Key =", k, ", Value =", x)
}
mymap.each { k, x ->
	println "Key $k - Value $x"
}
import Data.List (intercalate)
import qualified Data.Map as Map
let f k v = [show k, " = ", show v]
    mapped = Map.mapWithKeys f mymap
in putStrLn $ intercalate "," $ mapped
Object.entries(mymap).forEach(([key, value]) => {
	console.log('key:', key, 'value:', value);
});
for (const key in mymap) {
    console.log('key:', key, 'value:', mymap[key]);
}
for (Map.Entry<Object, Object> entry : mymap.entrySet()) {
    Object k = entry.getKey();
    Object x = entry.getValue();
    System.out.println("Key=" + k + ", Value=" + x);
}
import java.util.Map;
mymap.forEach((k,x) -> System.out.println("Key=" + k + ", Value=" + x));
mymap.entries.forEach { print("${it.key} ${it.value}") }
for k, x in pairs(mymap) do
	print('Key: '..k..', Value: '..x)
end
@import Foundation;
for (NSString *k in mymap)
  NSLog(@"Key %@, value %@",k,mymap[k]);
foreach ($mymap as $k=>$x)
{
    echo "Key=$k, Value=$x <br>";
}
uses fgl;
type TMyMap = specialize TFPGMap<String, Integer>;
for i := 1 to mymap.Count 		do
  WriteLn(mymap.Keys[i], '=', mymap.Data[i]);
while (my ($k, $x) = each %mymap) {
    print "Key=$k, Value=$x\n";
}
printf "Key=%s, Value=%s\n",$_,$mymap{$_} foreach (sort keys %mymap);

forall(get_dict(K, D, V),
       format("~w:~w~n", [K, V]))
for k, v in mymap.items():
    print(k, v)
mymap.each {|k, x| puts "Key= #{k}  Value=#{x}"}
use std::collections::BTreeMap;
for (k, x) in &mymap {
    println!("Key={key}, Value={val}", key=k, val=x);
}
val x = Map("a" -> 1, "b" -> 2, "c" -> 3)
x.foreach{ case (key, value) => println(s"$key => $value")}