missingPlaceholders

Reports context.report() calls missing data for message placeholders.

✅ This rule is included in the flint logical presets.

When reporting linting issues, it’s common to include dynamic data in the message using placeholders.

Examples

❌ Incorrect

ruleCreator.createRule(_, {
  messages: {
    messagesId: {
      primary: "This is a message with a {{placeholder}}",
      secondary: [""],
      suggestions: [""],
    },
  },
  setup(context: RuleContext) {
    context.report({
      message: "messagesId",
    });
  },
});

✅ Correct

ruleCreator.createRule(_, {
  messages: {
    messagesId: {
      primary: "This is a message with a {{placeholder}}",
      secondary: [""],
      suggestions: [""],
    },
  },
  setup(context: RuleContext) {
    context.report({
      data: {
        placeholder: "value",
      },
      message: "messagesId",
    });
  },
});

Options

This rule is not configurable.

Equivalents in Other Linters

• ESLint: eslint-plugin-eslint-plugin/no-missing-placeholders