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E0232: 'readonly static' is not allowed; write 'static readonly' instead

The order of property specifiers like readonly and static matters. The correct order is:

  1. static
  2. readonly (TypeScript only)

It is a syntax error to write specifiers in the wrong order:

class Logger {
  readonly static instance = new Logger();

To fix this error, rearrange the specifiers:

class Logger {
  static readonly instance = new Logger();

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