回答編集履歴
2
sss
test
CHANGED
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@@ -44,6 +44,8 @@
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44
44
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45
45
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var test = {"name":"1"};
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46
46
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47
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+
console.log(checkObjectKey());
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|
48
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+
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47
49
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console.log(checkObjectKey(test,["name"]));
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48
50
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49
51
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console.log(checkObjectKey(test,["name","msg"]));
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@@ -56,6 +58,8 @@
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56
58
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57
59
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```
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58
60
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61
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+
false
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62
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+
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59
63
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true
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60
64
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61
65
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false
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1
サンプルコード
test
CHANGED
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@@ -11,3 +11,53 @@
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11
11
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いっそ、
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12
12
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13
13
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キーの一覧を配列で渡して存在チェックをする関数を作れば、その部分だけは1つで済みますけど。
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14
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+
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15
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+
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16
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+
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17
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+
ざっくりサンプルコード
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|
18
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+
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19
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+
```js
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20
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+
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21
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+
function checkObjectKey(obj,keys){
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22
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+
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23
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+
if(!obj){
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24
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+
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25
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+
return false;
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26
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+
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27
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+
}
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|
28
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+
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|
29
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+
for(i=0;i<keys.length;i++){
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|
30
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+
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31
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+
if(!obj.hasOwnProperty(keys[i])){
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|
32
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+
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33
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+
return false;
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|
34
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+
|
|
35
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+
}
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|
36
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+
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37
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+
}
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|
38
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+
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39
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+
return true;
|
|
40
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+
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41
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+
}
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42
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+
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43
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+
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44
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+
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45
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+
var test = {"name":"1"};
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46
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+
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47
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+
console.log(checkObjectKey(test,["name"]));
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48
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+
|
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49
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+
console.log(checkObjectKey(test,["name","msg"]));
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50
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+
|
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51
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+
```
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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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+
結果：
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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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59
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+
true
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60
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+
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|
61
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+
false
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|
62
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+
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|
63
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+
```
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