javascript - Transfer entities to JSON format on Google Datastore -


i'm trying count how many entities in datastore, 

const query = datastore.createquery('testname','testkind')     .filter('done', '=' , false) .order('innerid',{         descending: true});  var datalist;  const rquery = datastore.runquery(query)       .then((results) => {       datalist = results[0];      });

just example use query fetch entities want.

however, when try count how many entities there, it's quite difficult. if use app.get('/', (req, res) => { res.json(datalist); });, shows normal form of json.

but, when try count numbers outside read request, console.log(datalist);

it shows undefined....

then tried const par = json.parse(datalist); console.log(par);

it shows syntaxerror: unexpected token u in json @ position 0

any tips solve problem? or maybe misunderstand something?

but, when try count numbers outside read request,

i think that's problem. you'll have wait variable populated before can access it.


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