B4X

Append New Item to JSON Array

See more JSON Examples

Demonstrates the notations that can be used in a JSON array index to append to the end of an array. B4X

'  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.

Dim json As ChilkatJsonObject
json.Initialize

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

Log(json.Emit)

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