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JavaScript Easy Theory

JavaScript best practices: readable code, const by default, avoiding globals, preferring ===, immutable patterns, proper error handling, modular code, and meaningful naming

Strong JavaScript code emphasizes readability, safe defaults, modular design, clear errors, and predictable state changes.

  • Prefer `const` unless reassignment is needed
  • Avoid accidental globals and hidden mutation
  • Good names and modules reduce cognitive load

JavaScript best practices: readable code, const by default, avoiding globals, preferring ===, immutable patterns, proper error handling, modular code, and meaningful naming