Function isNullOrEmpty

  • isNullOrEmpty(str): boolean

  • Parameters

    • str: undefined | null | string

      Function to check if an input is empty

    Returns boolean

    true if the input is null, undefined, or consisted only of whitespace characters, false otherwise

    Example

    isNullOrEmpty(''); // true
    isNullOrEmpty(' '); // true
    isNullOrEmpty('abc'); // false

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