Method warn

tools/console/console.js:828–833

(...args)

  // wrapping it. For raw output (ex: stack traces, user logs, etc), use the
  // rawWarn function. For more information about options, see: debug.
  warn(...args) {
    if (! this.isWarnEnabled()) { return; }

    var message = this._prettifyMessage(args);
    this._print(LEVEL_WARN, message);
  }

  rawError(...args) {
    var message = this._format(args);