如何检查输入日期是否等于今天的日期或不使用 JavaScript ？

给定一个日期对象，任务是在 JavaScript 的帮助下确定给定日期是否与今天的日期相同。这里讨论了两种著名的方法。

方法 1：从用户 (var inpDate) 获取输入日期，通过new Date()获取今天的日期。现在，通过传递全零的参数在两个日期上使用.setHours() 方法。传递所有零以使所有小时、分钟、秒和毫秒都为 0。现在将今天的日期与给定的日期进行比较并显示结果。

• 示例：此示例实现了上述方法。

   
   
    
   
       
          How to Check Input Date is Equal
          to Today’s Date or not using
          JavaScript?
       
        
      
          body {
              text-align: center;
          }
          h1{
              color: green;
          }
          #geeks {
              color: green; 
              font-size: 29px; 
              font-weight: bold;
          }
      
   
    
   
      GeeksforGeeks
        
      
          Type the date in given format
          and check if it is same as
          today's date or not.
      
        
      
        
      Type date: 
      
        
      
          click here
      
        
      
        
      
          var down = document.getElementById('geeks');
            
          function gfg() {
              var date = 
                  document.getElementById('date').value;
                
              var inpDate = new Date(date);
              var currDate = new Date();
                
              if(inpDate.setHours(0, 0, 0, 0) == 
                      currDate.setHours(0, 0, 0, 0))
              {
                  down.innerHTML = 
                      "The input date is today's date";
              } 
              else {
                  down.innerHTML = "The input date is"
                      + " different from today's date";
              }         
          }
       
   
    
           

• 输出：

方法 2：同样使用new Date()从用户 (var inpDate) 和今天的日期获取输入日期。现在，我们将在两个日期上使用.toDateString() 方法将它们转换为可读的字符串。现在将今天的日期与给定的日期进行比较并显示结果。

• 示例：此示例实现了上述方法。

   
   
    
   
       
          How to Check Input Date is Equal
          to Today’s Date or not using
          JavaScript?
       
        
      
          body {
              text-align: center;
          }
          h1 {
              color: green;
          }
          #geeks {
              color: green; 
              font-size: 29px; 
              font-weight: bold;
          }
      
   
    
   
      GeeksforGeeks
        
      
          Type the date in given format
          and check if it is same as
          today's date or not.
      
        
      
        
      Type date: 
      
        
      
          click here
      
        
      
        
      
          var down = document.getElementById('geeks');
            
          function gfg() {
              var date = 
                  document.getElementById('date').value;
                
              var inpDate = new Date(date);
              var currDate = new Date();
                
              if(currDate.toDateString() == 
                          inpDate.toDateString()) 
              {
                  down.innerHTML = 
                      "The input date is today's date";
              }
              else {
                  down.innerHTML = "The input date is"
                          + " different from today's date";
              }
          }
       
   
    

• 输出：