CSV
Parsing CSV in the Browser With Papa Parse Without Blocking
Parse an uploaded CSV in the browser with Papa Parse: typing traps, error objects, encodings, and chunks and workers measured on 500,000 rows.
11 min read
Tag
javascript
17 posts
CSV
Using csv parse in Node for Large Files Without Surprises
The csv-parse options that matter on big files in Node: columns, cast, on_record, relax_quotes and max_record_size, timed on 2,000,000 rows.
8 min read
CSV
Reading a CSV File in Node With Streams and Backpressure
Read a large CSV in Node with fs.createReadStream and csv-parse, filter with pipeline, stop early, and handle errors, BOMs and Windows-1252 files.
9 min read
Editor's pick
CSVGuide
Parsing CSV in JavaScript and Node Without Surprises
A tested guide to CSV in JavaScript: csv-parse, Papa Parse and a hand-written parser timed on 2,000,000 rows, plus streams, types, uploads and downloads.
20 min read
JSON
Fixing JSON That Is Really a JavaScript Object Literal
Text copied from console.log, DevTools or a config file is often a JavaScript object, not JSON. What differs, what is lost, and how to convert it safely.
7 min read