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Showing content from https://arduinojson.org/v5/api/jsonarray/copyfrom/ below:

JsonArray::copyFrom() | ArduinoJson 5

Description

Populates the JsonArray with values from a C array.

Signatures

// 1D arrays
JsonArray::copyFrom(T array[len]);
JsonArray::copyFrom(T* array, size_t len);

// 2D arrays
JsonArray::copyFrom(T array[][]);

Arguments

array: an array of value of type T.

len: the number of elements in the array.

T: the type of the value, can be any type supported by ArduinoJson.

Return value

true if the operation is successful; or false if there was not enough room in the JsonBuffer.

Example

int values[] = {1, 2, 3};

StaticJsonBuffer<200> jsonBuffer;
JsonArray& array = jsonBuffer.createArray();
array.copyFrom(values);
array.printTo(Serial);

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