CkPython

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. CkPython

import chilkat

# 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.

json = chilkat.CkJsonObject()

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

print(json.emit())

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