Leo had been a JavaScript developer for three years. He could spin up a React component in his sleep and chain promises like a poet. Yet, every Friday evening, the same dread washed over him as he typed npm run build .
Leo plugged in his laptop and opened the test suite. -Code With Mosh- Mastering JavaScript Unit Testing
He typed:
npm run test:coverage A terminal window filled with green dots. Then, he did something reckless. Leo had been a JavaScript developer for three years