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JavaScriptで文字が全て半角数字かどうか判定する

Last updated at Posted at 2020-02-04

JavaScriptで渡した文字が全て半角数字かどうか判定する方法です。

e1xport default class AsciiNumberTester {
  static containsOnlyHalfWidthNumber(str) {
    return /^[0-9]+$/.test(str);
  }
}
import AsciiNumberTester from 'path/to/class_file';

AsciiNumberTester.containsOnlyHalfWidthNumber(this.value)

-----------以下解説----------------

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