Setting a value

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Example on how to SET a value.

What does setting a value mean?

If that label / key already exists, overwrite it.
If not, create it.

C++:

Json json;
json.Parse(someJsonCode); // we have an already filled json


json["best_friend"] = "patrick";
// Whether or not a field called "best_friend" existed beforehand, 
// it exists now and contains the string "patrick".

That's it.