Json objects can be updated at runtime.
For example, using the following JSON:
{
"storeName": "Costco",
"products": [
{
"id": 1,
"name": "Apple iPhone",
"price": 499.0
},
{
"id": 2,
"name": "Google Pixel"
},
]
}
JsonObject json = JsonParser.Parse(jsonText); int numProducts = json["products"].AsArray().Length; json["products"][numProducts]["id"] = 3; json["products"][numProducts]["name"] = "Moto G6"; json["products"][numProducts]["price"] = 199.0;
Whenever a property is updated (either an element in an array or a field), it is either updated or created if it doesn't exist. In the example above, a new product is added to the array.
The code above could also be written like this:
int numProducts = json["products"].AsArray().Length; var jsonProduct = JsonObject.EmptyObject(); jsonProduct["id"] = 3; jsonProduct["name"] = "Moto G6"; jsonProduct["price"] = 199.0; json["products"][numProducts] = jsonProduct;