Answer
Use modular structure, consistent naming, ES6+ features, linting, type checking, state management, and performance optimization techniques. Ensures scalability, testability, and maintainability in enterprise applications.
Quick Answer
Maintainable large-scale JS: use TypeScript (type safety), ES modules (explicit dependencies), consistent naming conventions, single-responsibility functions, clear module boundaries, comprehensive tests (unit + integration), thorough JSDoc comments for public APIs, automated linting (ESLint), formatting (Prettier), and dependency auditing. Structure code around features, not file types.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ