![]() You just saw how to convert a comma separated value (CSV) file to JSON, make some manipulations, then write it back to disk as a CSV file, using simple JavaScript and a few packages. Using the CSV data, we can define an output file and write it to disk. The conversion back to CSV does not save it to disk, instead that is where the filesystem package comes into play. When we’re ready to convert back to CSV format, we can use the json2csv package, providing our JSON array as well as the field information. After we have JSON data, we’re going to add an object for another product. Since it is no fun just to convert and convert back, we’re going to change the data first. ![]() Using the csvtojson package, we can asynchronously load our source.csv file where the result is an array of objects. ![]() First we’re importing our dependencies, along with a file system dependency. The above JavaScript is complete code, but we’re going to figure out what everything means. parse const FileSystem = require ( "fs" ) CSVToJSON (). Const CSVToJSON = require ( "csvtojson" ) const JSONToCSV = require ( "json2csv" ).
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