回答編集履歴
2
2
answer
CHANGED
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@@ -10,4 +10,18 @@
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10
10
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11
11
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console.log(get_data(player,"name"))
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12
12
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console.log(get_data(player,["detail","age"]))
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13
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+
```
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14
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+
--- 追記 ---
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15
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+
もしご質問のような書式を使いたいなら
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16
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+
```javascript
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17
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+
function get_data(player, key) {
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18
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let [key1,key2] = key.split('.')
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19
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if (typeof key2 == "undefined") return player[key]
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20
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return player[key1][key2]
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21
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+
}
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22
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+
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23
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+
let player = { "name": "Ronaldo", "team": "Juventus" , "detail": { "age":23, "height":180 }}
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24
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+
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25
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console.log(get_data(player,"name"))
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26
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+
console.log(get_data(player,"detail.age"))
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13
27
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```
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1
1
answer
CHANGED
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@@ -2,7 +2,8 @@
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2
2
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```javascript
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3
3
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function get_data(player, key) {
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4
4
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if (typeof key == "string") return player[key]
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5
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+
let [key1,key2] = key
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5
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-
return player[
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6
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+
return player[key1][key2]
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6
7
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}
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7
8
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8
9
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let player = { "name": "Ronaldo", "team": "Juventus" , "detail": { "age":23, "height":180 }}
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