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C++

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.

Chilkat C++ Downloads

C++
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    // 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.

    CkJsonObject json;

    json.UpdateInt("lanes[-1]",0);
    json.UpdateInt("lanes[]",1);
    json.UpdateInt("lanes[*]",2);
    json.UpdateInt("lanes[-1]",3);

    std::cout << json.emit() << "\r\n";

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