質問編集履歴
2
watchの追加
test
CHANGED
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File without changes
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test
CHANGED
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@@ -28,13 +28,13 @@
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28
28
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29
29
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```javascript
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30
30
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31
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-
c
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31
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+
watch:{
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32
32
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33
33
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val: function(value) {
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34
34
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35
35
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this.val = value;
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36
36
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37
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-
parseInt
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37
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+
// parseInt
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38
38
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39
39
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// 文字列を整数に変換する関数
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40
40
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@@ -42,7 +42,7 @@
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42
42
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43
43
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this.val = parseInt(value);
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44
44
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45
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-
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45
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+
this.add = Math.floor(val + 2);
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46
46
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47
47
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this.sub = Math.floor(val - 2);
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48
48
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@@ -52,7 +52,7 @@
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52
52
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53
53
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}
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54
54
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55
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-
}
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55
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+
},
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56
56
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57
57
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```
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58
58
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1
javascriptのコードを追加
test
CHANGED
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File without changes
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test
CHANGED
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@@ -26,6 +26,36 @@
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26
26
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27
27
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```
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28
28
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29
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+
```javascript
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|
30
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+
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31
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+
computed: {
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|
32
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+
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33
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+
val: function(value) {
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34
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+
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35
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+
this.val = value;
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36
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+
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|
37
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+
parseInt
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|
38
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+
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39
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+
// 文字列を整数に変換する関数
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40
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+
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41
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+
var val = parseInt(value);
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42
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+
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43
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+
this.val = parseInt(value);
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44
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+
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|
45
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+
return this.add = Math.floor(val + 2);
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46
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+
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|
47
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+
this.sub = Math.floor(val - 2);
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|
48
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+
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|
49
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+
this.mult = Math.floor(val * 2);
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50
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+
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51
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+
this.div = Math.floor(val / 2);
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|
52
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+
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53
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+
}
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|
54
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+
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|
55
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+
}
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56
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+
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|
57
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+
```
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|
58
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+
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29
59
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### computedで実現させたい
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30
60
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31
61
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watchでは、簡単に処理ができました。
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