// Searchs for a value on the hash table

var h : Hashtable;
h = new Hashtable();
h.Add(1,"one");
h.Add(2,"two");
h.Add(3,"two");
if(h.Contains(1)) {
    Debug.Log("Key '1', has been found!");
}

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    public Hashtable h;
    void Example() {
        h = new Hashtable();
        h.Add(1, "one");
        h.Add(2, "two");
        h.Add(3, "two");
        if (h.Contains(1))
            Debug.Log("Key '1', has been found!");
        
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    public h as Hashtable

    def Example():
        h = Hashtable()
        h.Add(1, 'one')
        h.Add(2, 'two')
        h.Add(3, 'two')
        if h.Contains(1):
            Debug.Log('Key \'1\', has been found!')