计算时间差工具类（TypeScript/JavaScript）

 const time = ["2022-08-20 15:19:00","2022-08-20 13:19:00","2022-08-20 16:19:22"]
 
 //比较两个时间相差的小时
 function compareTime(time1:string,time2:string){
     //转换为Date
     let date1:Date = new Date(time1);
     let date2:Date = new Date(time2);
     console.log(date1);
     console.log(date2);
     //计算时间差的毫秒数
     let diff:number = date2.getTime() - date1.getTime();
     //如果为负数，。则转为正数
     if(diff<0){
         diff = -diff;
     }
     //计算出相差小时
     let hours:number = Math.floor(diff / 3600000);
     return hours;
 }
 
 console.log('相差时间：'+compareTime(time[0],time[1]));
 console.log('相差时间：'+compareTime(time[1],time[2]));