E0061: missing name in function statement

If a statement begins with the function keyword, the declared function must have a name. It is an error to start a statement with function but not give a name to the function:

function (number) {
  return number % 2 === 0;
}

To fix this error, write the name of the function after the function keyword:

function isEven(number) {
  return number % 2 === 0;
}

Introduced in quick-lint-js version 0.2.0.

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