Verification Command

The npm run verify command runs all pre-submit checks in sequence, giving you a single command to validate your changes before pushing.

Usage

npm run verify

If all steps pass, your changes are ready to submit.

Steps run in order, and the command stops on the first failure:

Step	Command	What it checks
Lint	`npm run lint`	Code quality and style rules via ESLint
Format	`npm run format`	Code formatting consistency via Prettier
Build	`npm run build`	TypeScript compilation
Test	`npm test -- --runInBand`	Unit tests via Jest
Compat	`npm run test:compat`	Runtime compatibility across Node.js and browser

ESLint reports code quality issues. To auto-fix common problems:

npm run lint -- --fix

Prettier enforces consistent code formatting. To auto-fix formatting issues:

npm run format

TypeScript compilation errors. Read the compiler output — it will tell you the exact file, line, and problem.

Jest output shows which tests failed and why. Run a single test file to isolate issues:

npm test -- path/to/test.ts

Runtime compatibility checks failed. See Runtime Compatibility for supported environments and guidance.