System.Delete
Delphi
procedure Delete(var S: String; Index: Integer; Count: Integer);
Contents
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| procedure | public | System.pas | System | System |
Description
Removes a substring from a string or elements range from a dynamic array.
S is a string-type or dynamic array-type variable. Index and Count are integer-type expressions.
Delete has a slightly different behavior depending on S type.
String-type
Delete removes a substring of Count characters from a string, starting at S[Index].
If Index is larger than the length of the string or less than 1, no characters are deleted.
If Count specifies more characters than the remaining in the string (counting from Index), Delete removes the rest of the string. If the value of Count is equal to or less than 0, then no characters are deleted.
Dynamic array-type
Delete removes an element range of Count elements from the array, counting from S[Index].
If Index is equal to or larger than the array's length or less than 0, no elements are deleted.
If Count specifies more elements than the remaining (counting from Index), Delete removes the rest of the array. No elements are deleted if Count is less than or equal to 0.
Dynamic Array Example
var
A: array of integer;
begin
...
A:=[1,2,3,4];
Delete(A,1,2); //A will become [1,4]
...
end;