回答編集履歴
4
追記
test
CHANGED
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@@ -14,15 +14,13 @@
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```
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[サンプル](https://codepen.io/asuchi0819/pen/eYYyQqv)
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---
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完全蛇足です。
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完全蛇足です。スマートに書くとこうなります。
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```JavaScripr
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@@ -63,3 +61,5 @@
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```
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64
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65
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[サンプル](https://codepen.io/asuchi0819/pen/eYYyQqv)
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3
追記
test
CHANGED
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@@ -15,3 +15,51 @@
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```
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[サンプル](https://codepen.io/asuchi0819/pen/eYYyQqv)
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---
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完全蛇足です。
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```JavaScripr
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timerCount = 0;
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function start() {
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timerId = setInterval(function(){
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timerCount++;
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document.getElementById("timer").textContent = timerCount / 10;
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},100);
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}
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function stop() {
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clearInterval(timerId);
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}
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function reset() {
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document.getElementById('timer').textContent = '0.0';
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timerCount = 0;
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}
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```
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2
追記
test
CHANGED
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@@ -15,49 +15,3 @@
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15
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```
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[サンプル](https://codepen.io/asuchi0819/pen/eYYyQqv)
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---
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完全蛇足ですがスマートに書くとこうなります。
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```JavaScript
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function start() {
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timerId = setInterval(function(){
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timerCount += 0.1;
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document.getElementById("timer").textContent = Math.round(timerCount * 10) / 10;
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},100);
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}
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function stop() {
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clearInterval(timerId);
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}
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function reset() {
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document.getElementById('timer').textContent = '0.0';
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timerCount = 0;
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}
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```
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1
追記
test
CHANGED
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@@ -15,3 +15,49 @@
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15
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```
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16
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[サンプル](https://codepen.io/asuchi0819/pen/eYYyQqv)
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---
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24
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25
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26
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27
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完全蛇足ですがスマートに書くとこうなります。
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28
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29
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```JavaScript
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function start() {
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timerId = setInterval(function(){
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timerCount += 0.1;
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document.getElementById("timer").textContent = Math.round(timerCount * 10) / 10;
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},100);
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}
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function stop() {
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clearInterval(timerId);
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}
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function reset() {
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document.getElementById('timer').textContent = '0.0';
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timerCount = 0;
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}
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63
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+
```
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