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Dart Best Practices
1. When to use this skill
Use this skill when:
- Writing or reviewing Dart code.
- Looking for guidance on idiomatic Dart usage.
2. Best Practices
Multi-line Strings
Prefer using multi-line strings (''') over concatenating strings with + and \n, especially for large blocks of text like SQL queries, HTML, or PEM-encoded keys. This improves readability and avoids lines_longer_than_80_chars lint errors by allowing natural line breaks.
Avoid:
final pem = '-----BEGIN RSA PRIVATE KEY-----\n' +
base64Encode(fullBytes) +
'\n-----END RSA PRIVATE KEY-----';
Prefer:
final pem = '''
-----BEGIN RSA PRIVATE KEY-----
${base64Encode(fullBytes)}
-----END RSA PRIVATE KEY-----''';
Line Length
Avoid lines longer than 80 characters, even in Markdown files and comments. This ensures code is readable in split-screen views and on smaller screens without horizontal scrolling.
Prefer: Target 80 characters for wrapping text. Exceptions are allowed for long URLs or identifiers that cannot be broken.
Related Skills
dart-modern-features : For idiomatic usage of modern Dart features like Pattern Matching (useful for deep JSON extraction), Records, and Switch Expressions.
Weekly Installs
173
Repository
kevmoo/dash_skills
GitHub Stars
119
First Seen
Feb 12, 2026
Security Audits
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Installed on
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