learn.dart+flutter shafi.dev

← → or space · progress saves for Continue on the roadmap

Goal

Make consistent style and static checks automatic, not a debate in review.

dart format

  • Formats Dart source to the canonical style.
  • Run on save in the editor, or dart format . before commit.

dart analyze

  • Runs the static analyzer (types, null safety, unresolved names, many lints).
  • Fix or suppress with care; prefer fixing.

analysis_options.yaml

  • Lives at package root (or repo root for a single package).
  • Extends package:lints/recommended.yaml or package:flutter_lints/flutter.yaml in Flutter projects.
  • Add or tighten rules as the team agrees.

CI

  • In pipelines, run dart format --output=none --set-exit-if-changed . and dart analyze so drift fails the build.

Practice tasks

  • Add analysis_options.yaml to a small Dart package if missing; extend recommended lints.
  • Turn on one stricter lint (for example prefer_final_locals) and fix five violations.
  • Run dart analyze on a legacy file and fix the first three issues without disabling rules.