回答編集履歴
4
修正
test
CHANGED
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@@ -19,3 +19,27 @@
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19
19
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console.log(list);
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20
20
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21
21
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```
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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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+
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25
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+
追記
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26
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+
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27
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+
すみません、-Infinityから-Infinityを引くとNaNになっちゃいますね…
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28
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+
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29
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+
やはり
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30
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+
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31
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+
```javascript
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32
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+
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33
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+
var comp = function(a, b) {
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34
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+
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35
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if (a[1] === "") return 1;
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36
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+
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37
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if (b[1] === "") return -1;
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38
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+
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39
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return (b[1] - a[1]);
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40
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+
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41
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}
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42
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+
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43
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```
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44
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+
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45
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+
が妥当でしょうか
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3
修正
test
CHANGED
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@@ -14,10 +14,8 @@
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14
14
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15
15
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}
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16
16
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17
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-
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18
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-
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19
17
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var list = [["aaa",100],["bbb",10],["ccc",""],["ddd",30],["eee",40]].sort(comp);
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20
18
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21
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-
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19
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+
console.log(list);
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22
20
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23
21
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```
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2
修正
test
CHANGED
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@@ -18,4 +18,6 @@
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18
18
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19
19
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var list = [["aaa",100],["bbb",10],["ccc",""],["ddd",30],["eee",40]].sort(comp);
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20
20
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21
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+
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22
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+
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21
23
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```
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1
修正
test
CHANGED
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@@ -4,20 +4,18 @@
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4
4
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5
5
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```javascript
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6
6
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7
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-
function
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7
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+
var comp = function(a, b) {
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8
8
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9
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-
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9
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+
var _a = (a[1] === "") ? -Infinity : a[1];
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10
10
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11
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-
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11
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+
var _b = (b[1] === "") ? -Infinity : b[1];
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12
12
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13
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-
var _b = (b[1] === "") ? -Infinity : b[1];
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14
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-
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15
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-
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13
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+
return (_b - _a);
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16
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-
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17
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-
});
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18
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-
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19
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-
return list;
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20
14
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21
15
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}
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22
16
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17
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+
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18
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+
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19
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+
var list = [["aaa",100],["bbb",10],["ccc",""],["ddd",30],["eee",40]].sort(comp);
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20
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+
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23
21
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```
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