System.Length
Delphi
function Length(S: <string or dynamic array>): Integer;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.pas | System | System |
Description
Returns the number of characters in a string or of elements in an array.
In Delphi code, Length returns the number of characters actually used in the string or the number of elements in the array. In C++ code, use the method of the same name on the AnsiString or DynamicArray class.
S is a string-valued or array-valued expression.
For single-byte and multibyte strings, Length returns the number of bytes used by the string. Example for UTF-8:
Writeln(Length(Utf8String('1¢'))); // displays 3
For Unicode (WideString) strings, Length returns the number of bytes divided by two.