JsonArray::createNestedArray()
Description
JsonArray::createNestedArray() appends a new array to the array pointed by the JsonArray.
If the JsonArray is null/unbound, this function does nothing.
Signature
JsonArray createNestedArray() const;
Return value
JsonArray::createNestedArray() returns a JsonArray that points to the newly created array.
JsonArray::createNestedArray() returns null if the memory allocation fails; in which case JsonArray::isNull(), returns true.
Example
StaticJsonDocument<200> doc;
JsonArray array = doc.to<JsonArray>();
array.add("hello");
JsonArray nested = array.createNestedArray();
nested.add("world");
serializeJson(array, Serial);
will write
["hello",["world"]]