A JS date library.

• clean - remove coverage data, Jest cache and transpiled files,
• prebuild - lint source files and tests before building,
• build - transpile TypeScript to ES6,
• build:watch - interactive watch mode to automatically transpile source files,
• lint - lint source files and tests,
• prettier - reformat files,
• test - run tests,
• test:watch - interactive watch mode to automatically re-run tests