回答編集履歴
2
ちょうせい
test
CHANGED
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@@ -6,7 +6,7 @@
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6
6
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7
7
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// var arr3 = arr1.map((x,y)=>x+" "+arr2[y]);
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8
8
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9
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-
var arr3 = arr1.
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9
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+
var arr3 = arr1.reduce((x,y,z)=>(x.push(`${y} ${arr2[z]}`),x),[]);
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10
10
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11
11
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console.log(arr3);
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12
12
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1
chousei
test
CHANGED
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@@ -4,7 +4,9 @@
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4
4
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5
5
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var arr2 = ['Taro', 'Ichiro', 'Ken'];
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6
6
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7
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-
var arr3 = arr1.map((x,y)=>x+" "+arr2[y]);
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7
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+
// var arr3 = arr1.map((x,y)=>x+" "+arr2[y]);
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8
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+
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9
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+
var arr3 = arr1.map((x,y)=>[x,arr2[y]].join(' '));
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8
10
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9
11
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console.log(arr3);
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10
12
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