| StartsWith(ReadOnlySpanChar, Char) | Indicates whether a read-only character span begins with the specified Unicode character. |
| StartsWith(ReadOnlySpanChar, String) | Indicates whether a read-only span of characters starts with the specified String. |
| StartsWith(ReadOnlySpanChar, String, StringComparison) | Indicates whether a read-only character span begins with a specified String when compared using a specified StringComparison value. |