Function warn

resources/vega.min.js:109–111

()

        return (r >= v && n(e || "error", "ERROR", arguments), this);
      },
      warn() {
        return (r >= _ && n(e || "warn", "WARN", arguments), this);
      },
      info() {
        return (r >= x && n(e || "log", "INFO", arguments), this);
      },