how to convert the json object to array code example

Example 1: convert json object to array javascript

var as = JSON.parse(jstring);

Example 2: push object to json array

var feed = {created_at: "2017-03-14T01:00:32Z", entry_id: 33358, field1: "4", field2: "4", field3: "0"};

var data = [];
data.push(feed);

console.log(data);