function assert(something, message) {
    if (!something) {
      var error = new Error(message);
      error_output(error.stack);
    }
  }
function assert(something, message) {
    if (!something) {
      var error = new Error(message);
      error_output(error.stack);
    }
  }
function assert ( something , message ) { if ( ! something ) { var error = new Error ( message ) ; error_output ( error . stack ) ; } }
Utility functions.
Utility functions .