回答編集履歴
1
追記
test
CHANGED
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@@ -11,3 +11,33 @@
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11
11
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// ["aaa", "bbb", "ccc", "aaa", "bbb", "ccc", "aaa", "bbb", "ccc"]
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12
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```
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14
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+
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15
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16
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17
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map を使う場合、forEach と同じ使い方になり、返却値が無意味になってしまいます。
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18
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+
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19
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```javascript
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20
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21
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const hoge2 = []
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for ( ary of list ) { hoge2.push(...ary) };
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console.log( hoge2 );
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const hoge3 = []
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list.forEach( ary => hoge3.push(...ary) );
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32
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33
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console.log( hoge3 );
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34
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const hoge4 = []
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list.map( ary => hoge4.push(...ary) );
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console.log( hoge4 );
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```
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