check if a hashtable contains a key code example

Example 1: javascript hashtable contains key

if (obj.hasOwnProperty("key1")) {
  ...
}

Example 2: c# use hashtable check if key exists

// Create hashtable
Hashtable ht = new Hashtable();

// Add a key value pair
ht.Add("001",".Net");

// Check to see if key exists
ht.ContainsKey("001")