SOURCE

let input = [
                        "2018-4-6 3:00",
                        "2018-4-6 4:00",
                        "2018-4-6 5:00",
                        "2018-4-6 6:00",
                        "2018-4-6 7:00",
                        "2018-4-6 10:00",
                        "2018-4-6 11:00",
                        "2018-4-7 3:00",
                        "2018-4-7 4:00",
                        "2018-4-7 5:00",
                        "2018-4-7 6:00",
                        "2018-4-7 7:00",
                        "2018-4-8 3:00",
                        "2018-4-8 4:00",
                        "2018-4-8 5:00",
                        "2018-4-8 6:00",
                        "2018-4-8 7:00",
                        "2018-4-9 23:00",
                        "2018-4-10 00:00",
                        "2018-4-12 6:00"
                    ];
										//新建一个类
                   function HandleTime(){};
										//定义类的原型方法
									 HandleTime.prototype.getTimeDuration = function(input) {
                        let ret = [];
                        //你的实现
                      	for(i=0;i<input.length;i++){
                          let tempRet = [];
                          tempRet.push(input[i]);
                          for (j=i+1;j<input.length;j++){
                           if(!this.isContinue(input[j-1],input[j])) {
                             tempRet.push(this.endTime(input[j-1]));
                             i=j-1;
                             break;
                           }
                          }
                          ret.push(tempRet);
                        }
                      	ret[ret.length-1].push(this.endTime(input[input.length-1]));
                        return ret;
                    }
										HandleTime.prototype.getYear = function(str) {
                      let index = str.indexOf("-");
                      return str.slice(0,index);
                    }
										HandleTime.prototype.getMonth = function(str) {
                      let index1 = str.indexOf("-");
                      let index2 = str.slice(index1+1).indexOf("-");
                      return str.slice(index1+1,index2);
                    }
										HandleTime.prototype.getDay = function(str) {
                      let index = str.indexOf(" ");
                      if(str.charAt(index-2) == "-"){
                        return str.charAt(index-1);
                      }else{
                        return str.substr(index-2,2);
                      }
                    }
										HandleTime.prototype.getTime = function(str) {
                      let index1 = str.indexOf(" ");
                      let index2 = str.indexOf(":");
                      return str.slice(index1+1,index2);
                    }
										HandleTime.prototype.endTime = function(str){
                      let index1 = str.indexOf(" ");
                      let index2 = str.indexOf(":");
                      let time = str.slice(index1+1,index2);
                        if(time == "23"){
                          return str.slice(0,index1+1).concat("00",str.slice(index2));
                        }else{
                          return str.slice(0,index1+1).concat(parseInt(time)+1,str.slice(index2));
                        }
                    }
										HandleTime.prototype.isContinue = function(str1,str2){
                      if(this.getYear(str1) != this.getYear(str2)){
                        return false;
                      }
                      if(this.getMonth(str1) != this.getMonth(str2)) {
                        return false;
                      }
                      if(this.getDay(str1) != this.getDay(str2)) {
                        if(parseInt(this.getDay(str1))+1 == this.getDay(str2) &&
                           this.getTime(str1) == "23" && this.getTime(str2) == "00") {
                      		return true;    
                        }
                        return false;
                      }
                      if(parseInt(this.getTime(str1))+1 != this.getTime(str2) ) {
                        return false;
                      }
                      return true;
                   }
										var handleTime = new HandleTime();
										handleTime.input = input;
										console.log(handleTime.input);
                    let out = handleTime.getTimeDuration(input);
                    console.log(out);