quick-lint-js

Find bugs in JavaScript programs.

E0107: expected '{'

A switch statement has a list of cases. It is a syntax error to omit { after the condition of a switch statement:

function colorToHexCode(color) {
  switch (color)
    case 'red':   return '#ff0000';
    case 'green': return '#00ff00';
    case 'blue':  return '#0000ff';
  }
}

To fix this error insert a { after the condition:

function colorToHexCode(color) {
  switch (color) {
    case 'red':   return '#ff0000';
    case 'green': return '#00ff00';
    case 'blue':  return '#0000ff';
  }
}

Documentation for other errors