Include source files for source maps.

What's Changed

• BREAKING: Make ESM-only by @fb55 in #1138

Full Changelog: v2.1.1...v3.0.0

• The ESM code had some issues that are now fixed aeeb067

v2.1.0...v2.1.1

What's Changed

• nth-check is now a dual CommonJS and ESM module #206
• With the new sequence and generate methods, it is now possible to generate a sequence of indices for a given formula #207

Full Changelog: v2.0.1...v2.1.0

Fixes:

• Replace regex with hand-rolled parser for nth-expressions (#9) 9894c1d
  • Ensures parsing will always have linear time complexity.

Internal:

• chore(ci): Use GitHub Actions, Dependabot (#10) e02b4dd
• Bump dependencies

v2.0.0...v2.0.1

• Port module to TS, Jest, ESLint

Breaking:

• The main export is now a default export.
• The module now throws regular Errors on invalid selectors instead of SyntaxErrors.