Validating messages

To ensure quality and completeness of your messages, you can use i18n-check.

This CLI helps you validate against issues like:

Missing translations in target locales
Inconsistent usage of ICU arguments across translations

Usage:

i18n-check --source en --locales messages

Output:

Found missing keys!
┌────────────────────┬───────────────────────────────┐
│ file               │ key                           │
├────────────────────┼───────────────────────────────┤
│  messages/de.json  │  NewsArticle.title            │
└────────────────────┴───────────────────────────────┘

💡

You can also use the --unused flag to detect keys that are defined in your messages, but are not referenced anywhere in your codebase (currently experimental).

Storybook Design principles