Used 'of' operator instead of 'in' operator to traverse through the a…

[abhisgit]

…rray elements for headers

[abhisgit]

A simple test to showcase issue:

var test = ['It','works','correctly','now'];

var headers = ""; for (var index in test) { headers += index + ","; } console.log(headers); // expected output: "It,works,correctly,now," // actualoutput: "0,1,2,3,"

var headers = ""; for (var column of test) { headers += column + ","; } console.log(headers); // expected output: "It,works,correctly,now," // actualoutput: "It,works,correctly,now,"

[devakone]

Good deal!