回答編集履歴
2
ちょうせい
answer
CHANGED
@@ -1,4 +1,4 @@
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1
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-
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1
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+
調整しました
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2
2
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```javascript
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3
3
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var test = ['あ','い','う'];
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4
4
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console.log(test.reduce((x,y,z)=>x+(test.length-1<=z?'':'文字')+y,''));
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1
ちょうせい
answer
CHANGED
@@ -1,7 +1,5 @@
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1
1
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splice処理を入れたらどうでしょう?
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2
2
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```javascript
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3
3
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var test = ['あ','い','う'];
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4
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-
console.log(
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4
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+
console.log(test.reduce((x,y,z)=>x+(test.length-1<=z?'':'文字')+y,''));
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5
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-
return '文字' + value;
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6
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-
}).join(""));
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7
5
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```
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