node.js - How to write into a csv with multiple rows and columns -


now have several json in mongodb, such as:

{    title: "title_1",    content: "content_1",    author: "author_1" }

and want write these data csv file format below:

title    content     author title_1  content_1   author_1 title_2  content_2   author_2 ...

i used node-csv-parser module. write in first column in csv file, such as:

title                          content          author title_1,content_1,author_1 title_1,content_1,author_2 ...

what should achieve aim? please show me examples. appreciated!

convert nested arrays, join.

var array = [   {     title: "title_1",     content: "content_1",     author: "author_1"   },   {     title: "title_1",     content: "content_1",     author: "author_2"   } ]; var keys = object.keys(array[0]); var csv = [keys.join('\t')]; array.foreach(function (data) {   var row = [];   keys.foreach(function (key) {     row.push(data[key]);   });   csv.push(row.join('\t')); }); csv = csv.join('\n');

output:

title   content author title_1 content_1   author_1 title_1 content_1   author_2

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