| TrimStart(SpanChar) | Removes all leading white space characters from a character span. |
| TrimStart(SpanChar, Char) | Removes all leading occurrences of trimElement from a character span. |
| TrimStart(SpanChar, ReadOnlySpanChar) | Removes all leading occurrences of a set of characters specified in a read-only span from a character span. |
| TrimStart(SpanChar, String) | Removes all leading occurrences of a set of characters specified in a String from a character span. |