jsonencode

encodes a Nelson object into a JSON string.

Syntax

• res = jsonencode(obj)

• res = jsonencode(obj, 'ConvertInfAndNaN', true_or_false)

Input argument

• obj - a Nelson object: struct, cell, matrix.

• true_or_false - a logical: if true, Inf, NaN are converted to 'Inf' or 'Nan'.

Output argument

• res - a string: JSON text.

Description

jsonencode converts a Nelson variable to JSON text.

jsonencode does not support complex numbers, sparse arrays, function handle, and others handle.

jsonencode can be overloaded to manage your own type.

By default jsonencode Inf values are converted to the string "Inf", NaN values are converted to 'null'.

Warning: The shape of a matrix and data type are not always preserved.

Bibliography

http://www.rfc-editor.org/rfc/rfc7159.txt

Example

field1 = 'f1';  value1 = zeros(1,10);
field2 = 'f2';  value2 = {'a', 'b'};
field3 = 'f3';  value3 = {pi, pi*pi};
field4 = 'f4';  value4 = {'fourth'};
s = struct(field1,value1,field2,value2,field3,value3,field4,value4);
r = jsonencode(s)
filewrite([tempdir(), 'example.json'], r);

See also

jsondecode.

History

Version	Description
1.0.0	initial version

Author

Allan CORNET