回答編集履歴
2
別パターンも追記
test
CHANGED
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@@ -33,3 +33,29 @@
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33
33
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34
34
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```
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36
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+
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37
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38
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+
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39
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行数は減りますが、sort+concat+filter×2と、メソッドの使用回数は増えます。
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40
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41
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```javascript
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42
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43
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const pointSort = function(array, num) {
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44
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const preSort = (a, b) => a - b,
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46
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overFilter = (v) => v >= num,
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48
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49
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lessFilter = (v) => v < num,
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50
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51
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arr = array.slice().sort(preSort);
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52
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return arr.filter(overFilter).concat(arr.filter(lessFilter));
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54
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};
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58
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59
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pointSort([4, 1, 3, 2, 5, 7, 6], 4); // [4, 5, 6, 7, 1, 2, 3]
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60
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+
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61
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```
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1
不要変数の削除
test
CHANGED
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@@ -18,17 +18,11 @@
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18
18
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}
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20
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21
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-
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22
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-
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return a - b;
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22
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-
}
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23
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};
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24
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27
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-
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25
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return array.slice().sort(preSort).sort(mainSort);
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28
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-
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29
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-
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30
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-
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31
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-
return arr;
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32
26
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33
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};
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34
28
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