Boolean [JavaScript snippet]

function main() {

  var zero   = new Boolean(           0)  // false
  var one    = new Boolean(           1)  //  true
  var empty  = new Boolean(          "")  // false
  var null_  = new Boolean(        null)  // false
  var nan_   = new Boolean(         NaN)  // false
  var str    = new Boolean("any string")  //  true

  txt_out(zero  )
  txt_out(one   )
  txt_out(empty )
  txt_out(null_ )
  txt_out(nan_  )
  txt_out(str   )

}