How to add second property at JSONStream.parse()?

[ghost]

I want to parse big json file and get from it two property how can i do this?
like i choose one
var parser = JSONStream.parse('email'), how can i add another one?

[ghost]

` var getStream = function () {

var stream = fs.createReadStream(fileName, {encoding: 'utf8'});
var parser = JSONStream.parse('email'); // how to add here another
return stream.pipe(parser);
};
getStream()
.pipe(es.mapSync(function (data) {
console.log(data);
}));
`
my code

[dominictarr]

JSONStream works best with list like data. Hopefully your json file is at some level, a very large array with many item.
you give JSONStream.parse(...) a path into the json object... maybe something like "rows.*.email" if you had a document that looked like {"rows": [....{email: foo@bar.com, ...}]}

if you need to get two properties, just take a path to the level they are in. say, rows.*

[ghost]

yeah, i do the same already, thanks