回答編集履歴
1
調整
answer
CHANGED
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@@ -25,4 +25,44 @@
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25
25
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time.addHour(1.234);
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26
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console.log(time.disp());
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27
27
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28
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+
```
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29
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+
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30
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# 調整
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31
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よく考えたら秒単位でやったほうがすっきりしますね
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32
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33
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```javascript
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34
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var mytime=function(str){
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35
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var hms=str.split(":");
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36
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var h=parseInt(hms[0]);
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37
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var m=parseInt(hms[1]|"0");
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38
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var s=parseInt(hms[2]|"0");
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39
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this.time=h*3600+m*60+s;
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40
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this.addSecond=function(n){
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41
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this.time+=n;
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42
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};
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43
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this.addMinute=function(n){
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44
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this.time+=n*60;
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45
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};
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46
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this.addHour=function(n){
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47
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this.time+=n*3600;
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48
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};
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49
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this.disp=function(){
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50
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var minus=this.time<0?"-":"";
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51
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var t=Math.abs(this.time);
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52
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var h=Math.floor(t/3600).toString();
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53
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var m=(100+Math.floor((t%3600)/60)).toString().substr(-2);
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54
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var s=(100+Math.round(t%60)).toString().substr(-2);
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return minus+h+":"+m+":"+s;
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56
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};
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};
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58
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var time=new mytime('21:00');
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59
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console.log(time.disp());
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60
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time.addHour(4.5);
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61
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console.log(time.disp());
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62
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time.addHour(1.234);
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63
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console.log(time.disp());
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64
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time.addHour(-30.2);
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65
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console.log(time.disp());
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66
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time.addHour(4.1);
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67
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console.log(time.disp());
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28
68
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```
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