SOLID Principles in JavaScript

What SOLID principle suggests that a class should focus on doing one thing well?

class Report {
  generateReport() { /* ... */ }
  saveToFile() { /* ... */ }
  sendEmail() { /* ... */ }
  printReport() { /* ... */ }
  validateData() { /* ... */ }
  formatData() { /* ... */ }
}

Interface Segregation Principle
Single Responsibility Principle
The Single Responsibility Principle (SRP) states that a class should have only one reason to change. In this example, the Report class violates SRP by handling multiple responsibilities: report generation, file operations, email sending, printing, data validation, and formatting. These responsibilities should be separated into different classes, each focusing on a single concern.
Open/Closed Principle
Dependency Inversion Principle

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