text: export default class ConsoleSignature {
    constructor() {
      this.message = `created by yoichi kobayashi`;
      this.url = `http://www.tplh.net`;
      this.show();
    }
    show() {
      if (navigator.userAgent.toLowerCase().indexOf('chrome') > -1) {
        const args = [
          `%c ${this.message} %c ${this.url}`,
          `color: #fff; background: #47c; padding:3px 0;`,
          `padding:3px 1px;`,
        ];
        console.log.apply(console, args);
      } else if (window.console) {
        console.log(`${this.message} ${this.url}`);
      }
    }
  }
  