回答編集履歴
2
エスケープ忘れ
answer
CHANGED
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@@ -3,7 +3,7 @@
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3
3
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- [ゼロパディングとは - IT用語辞典 Weblio辞書](http://www.weblio.jp/content/%E3%82%BC%E3%83%AD%E3%83%91%E3%83%87%E3%82%A3%E3%83%B3%E3%82%B0)
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4
4
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5
5
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```JavaScript
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6
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const sample = (numberString) => /+?0*[1-9]\d*$/.test(numberString);
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6
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+
const sample = (numberString) => /^\+?0*[1-9]\d*$/.test(numberString);
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7
7
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console.log(sample('1')); // true
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console.log(sample('001')); // true
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1
小数のテストコード追加
answer
CHANGED
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@@ -5,11 +5,12 @@
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5
5
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```JavaScript
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6
6
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const sample = (numberString) => /+?0*[1-9]\d*$/.test(numberString);
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7
7
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8
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console.log(sample('1'));
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8
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console.log(sample('1')); // true
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9
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console.log(sample('001'));
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9
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console.log(sample('001')); // true
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console.log(sample('+1'));
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10
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console.log(sample('+1')); // true
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11
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console.log(sample('1.0')); // false
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11
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console.log(sample('-1'));
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12
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console.log(sample('-1')); // false
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12
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-
console.log(sample('0'));
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13
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console.log(sample('0')); // false
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```
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Re: asdfghjklpoiuyt さん
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