回答編集履歴
3
再帰処理を封印
test
CHANGED
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@@ -25,3 +25,11 @@
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25
25
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const A =(a,...b)=>'文字'+a+(b.length>1?A(...b):b);
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26
26
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27
27
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```
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28
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+
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29
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+
再帰が評価されないようなので
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30
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+
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31
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+
```js
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32
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+
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33
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+
console.log(test.reduceRight((x,y)=>'文字'+y+x));
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34
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+
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35
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+
```
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2
短くも
test
CHANGED
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@@ -17,3 +17,11 @@
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17
17
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const A =(a,...b)=>'文字'+(b.length>1?a+A(...b):a+b);
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18
18
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19
19
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```
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20
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+
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21
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+
さらに
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22
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+
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23
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+
```js
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24
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+
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25
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+
const A =(a,...b)=>'文字'+a+(b.length>1?A(...b):b);
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26
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+
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27
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+
```
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1
短く
test
CHANGED
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@@ -9,3 +9,11 @@
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9
9
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console.log(A (...test));
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10
10
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11
11
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```
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12
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+
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13
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+
じゃもう少し短く
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|
14
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+
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15
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+
```js
|
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16
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+
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17
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+
const A =(a,...b)=>'文字'+(b.length>1?a+A(...b):a+b);
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18
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+
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19
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+
```
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