JQ模拟双击代码

1. var touchtime = 0;
   
2. $(".target").on("click", function() {
   
3.     if (touchtime == 0) {
   
4.         // set first click
   
5.         touchtime = new Date().getTime();
   
6.     } else {
   
7.         // compare first click to this click and see if they occurred within double click threshold
   
8.         if (((new Date().getTime()) - touchtime) < 800) {
   
9.             // double click occurred
   
10.             alert("double clicked");
    
11.             touchtime = 0;
    
12.         } else {
    
13.             // not a double click so set as a new first click
    
14.             touchtime = new Date().getTime();
    
15.         }
    
16.     }
    
17. });

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