how to add new data in json code example

Example 1: how to add element in json object

// base code ----------------------------------------------------------
	object["property"] = value;
	 // or
	object.property = value;
// exampel : ----------------------------------------------------------
	var myJson = { name: "mamad", family: "mirzaei" }
// i wana to add age 
	myJson.age = 26
// log =>
	console.log( "myJson >>:" ,myJson) 
// resalt =>
	{ name: "Mamad", family: "Mirzaei", age : 26 }

Example 2: how to add items to an existing json file python

a_dictionary = {"d": 4}

with open("sample_file.json", "r+") as file:
    data = json.load(file)
    update(a_dictionary)
    seek(0)
    dump(data, file)