import

ES6 modules organize code into separate files with export and import statements. I use export default for single main export and export { name } for named exports. The import { name } from './module.js' syntax imports specific exports. Using import *

CSV imports are where memory usage quietly explodes if you read everything at once. I stream rows with encoding/csv, validate each record, and batch inserts to keep DB overhead low. The important detail is backpressure: if the database is slow, the im

Data import/export moves data between systems. I use COPY for bulk operations—orders of magnitude faster than INSERT. CSV format balances simplicity and performance. Binary format is faster but less portable. Streaming import handles large files witho