Function isFile

  • Checks if the given value is a File.

    This function tests whether the provided value is an instance of File. It returns true if the value is an instance of File, and false otherwise.

    Parameters

    • x: unknown

      The value to test if it is a File.

    Returns x is File

    True if the value is a File, false otherwise.

    const value1 = new File(["content"], "example.txt");
    const value2 = {};
    const value3 = new Blob(["content"], { type: "text/plain" });

    console.log(isFile(value1)); // true
    console.log(isFile(value2)); // false
    console.log(isFile(value3)); // false