How to create a cvs file from a JSON array

Hi, I have never tried on ionic. But with javascript you can do it with Blob :

var data = new Blob([text], {type: 'text/csv'});

// If we are replacing a previously generated file we need to
// manually revoke the object URL to avoid memory leaks.
if (textFile !== null) {
window.URL.revokeObjectURL(textFile);
}
textFile = window.URL.createObjectURL(data);
var link = document.createElement("a");
link.setAttribute("href", textFile);
link.setAttribute("download", "csv.csv");

And for the "text", for each line you can do line + " \n "