Clear the content of NSMutableString instance

Question

I created an NSMutableString pointer variable and appended some text using the below code in the implementation file.

NSMutableString *displayString;
[displayString appendString: [NSString stringWithFormat:@"%i", digit]];

However, I would like to clear the displayString contents and would like append new text. Is there a way to do that?

Don't forget to allocate/initialize your string instance. – nobody Jun 02 '14 at 17:25 — nobody, Jun 02 '14 at 17:25
Allocation/initialization was done already. – TeKnofUNk Jun 02 '14 at 17:27 — TeKnofUNk, Jun 02 '14 at 17:27
but not in the snippet above it wasnt – Daij-Djan Jun 02 '14 at 17:28 — Daij-Djan, Jun 02 '14 at 17:28

score 7 · Answer 1 · answered Jun 02 '14 at 17:24

7

Setting the string to an empty string should do the trick, and allow you to append to it again.

[displayString setString:@""]

answered Jun 02 '14 at 17:24

nobody

score 0 · Answer 2 · answered Feb 08 '16 at 10:27

0

You must set its string to empty string. In this case, it will be like

displayString.string = @""

answered Feb 08 '16 at 10:27

2 Answers2