回答編集履歴
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修正
answer
CHANGED
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@@ -1,5 +1,5 @@
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1
1
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```javascript
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2
2
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var datas = ['hoge', 'fuga', 'piyo'];
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3
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-
var value = datas.indexOf('fuga') ? 'fuga': datas[0];
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3
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+
var value = (datas.indexOf('fuga') != -1) ? 'fuga': datas[0];
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4
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console.log(value);
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5
5
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```
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