JavaScript中的來源RegExp屬性是RegExp物件的唯讀字串屬性。它包含RegExp模式的文字。此文字不包括正規表示式文字中使用的分隔斜杠，也不包括“g”、“i”和“m”屬性。範例您可以嘗試執行以下程式碼來了解如何在JavaScript中實作來源RegExp屬性-
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