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lexuschert/fast_mask_for_string.cs

Last active September 5, 2021 09:26
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Faster mask for string
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fast_mask_for_string.cs
/// Faster mask for string
/// Example: CreateMask("Password123")
/// Return: Pas********
///
/// https://www.youtube.com/watch?v=Kd8oNLeRc2c
///
public static string CreateMask(string stringValue) =>
string.Create(
stringValue.Length,
stringValue,
(span, value) => {
value.AsSpan().CopyTo(span);
span[3..].Fill('*')
}
);
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