回答編集履歴
1
追記
answer
CHANGED
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@@ -6,4 +6,8 @@
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|
|
6
6
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if(arr.some(function(n) {return n == obj_key;}){
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|
7
7
|
|
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8
8
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}
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|
9
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-
```
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|
9
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+
```
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10
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+
---
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|
11
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+
ネタ元
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12
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+
http://yuuxxxx.hatenablog.com/entry/2014/07/17/235735
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13
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+
https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Array/some
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