jQuery's method to implement flashing title prompts for new messages_jquery

The example in this article describes how jQuery implements flashing title prompts for new messages. Share it with everyone for your reference. The details are as follows:

This code can flash prompt information in the title bar.

1. jQuery plug-in style code

;(function($) {
  $.extend({
    /**
     * 调用方法： var timerArr = $.blinkTitle.show();
     *     $.blinkTitle.clear(timerArr);
     */
    blinkTitle : {
      show : function() { //有新消息时在title处闪烁提示
        var step=0, _title = document.title;
        var timer = setInterval(function() {
          step++;
          if (step==3) {step=1};
          if (step==1) {document.title='【　　　】'+_title};
          if (step==2) {document.title='【新消息】'+_title};
        }, 500);
        return [timer, _title];
      },
      /**
       * @param timerArr[0], timer标记
       * @param timerArr[1], 初始的title文本内容
       */
      clear : function(timerArr) {
      //去除闪烁提示，恢复初始title文本
        if(timerArr) {
          clearInterval(timerArr[0]); 
          document.title = timerArr[1];
        };
      }
    }
  });
})(jQuery);

2. The calling method is as follows:

jQuery(function($) {
  var timerArr = $.blinkTitle.show();
  setTimeout(function() {//此处是过一定时间后自动消失
    $.blinkTitle.clear(timerArr);
  }, 10000);
  //若人为操作消失，只需如此调用：$.blinkTitle.clear(timerArr);
});

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I hope this article will be helpful to everyone’s jQuery programming.