How to fix Enum member name must be followed by ',' ':' or '}' in TypeScript

// WRONG - uses colon (:)
enum Status {
  Active: 1,      // ❌ Error: expected ',' '=' or '}'
  Inactive: 0,
  Pending: 2
}

// CORRECT - uses equals sign (=)
enum Status {
  Active = 1,     // ✅ Valid syntax
  Inactive = 0,
  Pending = 2
}

// WRONG - missing commas
enum Color {
  Red = "#FF0000"
  Green = "#00FF00"    // ❌ Error: expected ','
  Blue = "#0000FF"
}

// WRONG - using semicolons
enum Color {
  Red = "#FF0000";     // ❌ Error: expected ','
  Green = "#00FF00";
  Blue = "#0000FF"
}

// CORRECT - commas between members
enum Color {
  Red = "#FF0000",     // ✅ Valid
  Green = "#00FF00",
  Blue = "#0000FF"     // Trailing comma is optional
}

// WRONG - type annotations not allowed
enum HttpStatus {
  OK: number = 200,           // ❌ Error
  NotFound: number = 404,
  ServerError: number = 500
}

// CORRECT - no type annotations needed
enum HttpStatus {
  OK = 200,                   // ✅ TypeScript infers the type
  NotFound = 404,
  ServerError = 500
}

// WRONG - various string enum mistakes
enum Direction {
  North: "N",        // ❌ Colon instead of equals
  East = "E"
  South = "S",       // ❌ Missing comma after East
  West: 'W'          // ❌ Colon instead of equals
}

// CORRECT - proper string enum
enum Direction {
  North = "N",       // ✅ Equals sign + comma
  East = "E",
  South = "S",
  West = "W"
}

// WRONG - missing initializer
enum Direction {
  North,             // ❌ String enums need explicit values
  East = "E",
  South = "S"
}

// CORRECT - all members initialized
enum Direction {
  North = "N",
  East = "E",
  South = "S",
  West = "W"
}

// WRONG - various illegal characters
enum Priority {
  Low = 1,
  Medium = 2 + 1,    // ✅ Computed values are allowed
  High:: 3,          // ❌ Double colon invalid
  Critical = = 4,    // ❌ Double equals invalid
  Urgent! = 5        // ❌ Exclamation mark invalid
}

// CORRECT - only valid syntax
enum Priority {
  Low = 1,
  Medium = 2,
  High = 3,
  Critical = 4,
  Urgent = 5
}

// Auto-increment (no assignment needed)
enum Level {
  Beginner,          // = 0 (automatic)
  Intermediate,      // = 1 (auto-increment)
  Advanced          // = 2 (auto-increment)
}

// Explicit numbering
enum Level {
  Beginner = 1,      // Start at 1
  Intermediate,      // = 2 (auto-increment)
  Advanced          // = 3 (auto-increment)
}

// Computed values
enum Permission {
  None = 0,
  Read = 1 << 0,     // = 1
  Write = 1 << 1,    // = 2
  Execute = 1 << 2   // = 4
}

// WRONG - mixing requires initialization
enum Mixed {
  First = "first",
  Second,            // ❌ Error: must initialize after string member
  Third = 3
}

// CORRECT - explicit initialization
enum Mixed {
  First = "first",
  Second = "second", // ✅ All string members initialized
  Third = "third"
}