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JavaScriptでJSONが不正かどうか判定する関数

Last updated at Posted at 2019-05-14

JSONを文字列からパースするための関数としてJSON.parse()が存在するが、不正な文字列を与えた時にはSystaxErrorをthrowすることを利用して下記のような関数を実装できる。

isValidJson(value) {
  try {
    JSON.parse(value)
  } catch (e) {
    return false
  }
  return true
}
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