Boris Cherny's Blog June 19, 2024 Coming back to JavaScript and TypeScript after a few years neck deep in Python and Hack, I kept hitting a number of new, cryptic errors when running NodeJS code in my dev environment: # when I ran ESM TypeScript code the wrong way: Error [ERR_REQUIRE_ESM]: Must use import to load ES Module # when I imported an ESModule from a .ts file: error TS1479: The current file is a CommonJS module whose imports will produce 'require' calls # when I used ES6 import syntax i...