Simply stringify a readable stream in objectMode and get that array as a complete valid JSON at readable side of transform stream.
Usefull if you want to do something like:
res.set('Content-Type', 'application/json')
readableObjectStream
.pipe(new JSONStringifyTrough())
.pipe(res)
.on('error', ...)Saves you 1 buffering in case where you would collect all objects into array and then JSON.stringify all that.
Write simple benchmark code and test different stringifiers