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How to break out from a ruby block?
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Use the keyword next. If you do not want to continue to the next item, use break.
When next is used within a block, it causes the block to exit immediately, returning control to the iterator method, which may then begin a new itera...
How to convert date to timestamp in PHP?
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This method works on both Windows and Unix and is time-zone aware, which is probably what you want if you work with dates.
If you don't care about timezone, or want to use the time zone your server uses:
$d = DateTime::createFromFormat('d...
How to check if a string starts with one of several prefixes?
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hmjdhmjd
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Mercurial: Can I rename a branch?
...the output of "hg branches". It still allows you to access it later if you know the name.
– Utensil
Sep 14 '11 at 15:39
2
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How to convert an int to string in C?
How do you convert an int (integer) to a string? I'm trying to make a function that converts the data of a struct into a string to save it in a file.
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ASP.NET MVC return empty view
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archilarchil
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how does array[100] = {0} set the entire array to 0?
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As for what sort of code the compiler might generate when you do this, take a look at this question: Strange assembly from array 0-initialization
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cancelling queued performSelector:afterDelay calls
does anybody know if it is possible to cancel already queued selector events from the event stack or timer stack (or whatever mechanism it is that is utilized by the API) when you call performSelector:withObject:afterDelay ?
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How can I center a div within another div? [duplicate]
... be centered within #main_content . However, it is not. Why isn't this working, and how can I fix it?
27 Answers
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Objective-C - Remove last character from string
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In your controller class, create an action method you will hook the button up to in Interface Builder. Inside that method you can trim your string like this:
if ([string length] > 0) {
string = [string substringToIndex:[string length] - 1];
} else {
//no characters to dele...