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Always provide explicit default values for configuration options to improve code readability and maintainability. Use helper methods consistently for default value management, and document defaults clearly.

When setting configuration options:

1. Use helper methods like getOptionsProp() with explicit default values: ```typescript // Good - default value is explicit this.port = this.getOptionsProp(options, ‘port’, TCP_DEFAULT_PORT); this.rawOutputPackets = this.getOptionsProp(options, ‘rawOutputPackets’, false);

// Avoid - implicit default through || operator this.port = this.getOptionsProp(options, ‘port’) || TCP_DEFAULT_PORT;

2. Conditionally add configuration options only when needed:
```typescript
// Good - only add config when value exists
const serverOptions = {
  ...this.maxSendMessageLength ? 
    { 'grpc.max_send_message_length': this.maxSendMessageLength } : 
    {}
};

// Avoid - setting undefined values
const serverOptions = {
  'grpc.max_send_message_length': this.maxSendMessageLength
};

1. Document default values using appropriate JSDoc tags: ```typescript /**
   • Defines if file parameter is optional.
   • @default false */ optional?: boolean;

// When defaults differ between contexts (e.g., client vs server): /**

• Defaults to "-server" on server side and "-client" on client side. */ clientId?: string; ```

1. Avoid duplicating default values that are already defined by dependencies. Instead, rely on the dependency’s defaults unless you have a specific reason to override them.

Following these practices makes configuration behavior more predictable and self-documenting, reduces bugs from unexpected undefined values, and makes code easier to maintain.