json object contains key code example

Example 1: js object contain key

if ('key' in myObj)
// better
if (!myObj.hasOwnProperty('key'))

Example 2: json object check if key exists java

// JSONObject class has a method named "has":
// http://developer.android.com/reference/org/json/JSONObject.html#has(java.lang.String)
// Returns true if this object has a mapping for name. The mapping may be NULL.
if (json.has("status")) {
   String status = json.getString("status"));
}

if (json.has("club")) {
   String club = json.getString("club"));
}