Rust

Append New Item to JSON Array

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Demonstrates the notations that can be used in a JSON array index to append to the end of an array. Rust

// Starting in Chilkat v9.5.0.77, the following notations are possible to specify that the value
// should be appended to the end of the array. (In other words, if the array currenty has N elements, then "-1", "", or "*" 
// indicate an index of N+1.

let json = chilkat::JsonObject::new();

let _ = json.update_int("lanes[-1]", 0);
let _ = json.update_int("lanes[]", 1);
let _ = json.update_int("lanes[*]", 2);
let _ = json.update_int("lanes[-1]", 3);

println!("{}", json.emit().unwrap_or_default());

// Output is:  {"lanes":[0,1,2,3]}