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How to check if a file exists in Documents folder?
I have an application with In-App Purchase, that when the user buy something, download one html file into the Documents folder of my app.
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Get program execution time in the shell
I want to execute something in a linux shell under a few different conditions, and be able to output the execution time of each execution.
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Custom exception type
...n I define custom types for user-defined exceptions in JavaScript? If so, how would I do it?
13 Answers
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Postgresql: password authentication failed for user “postgres”
I have installed PostgreSQL 8.4, Postgres client and Pgadmin 3. Authentication failed for user "postgres" for both console client and Pgadmin. I have typed user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times withou...
How do I restrict a float value to only two places after the decimal point in C?
How can I round a float value (such as 37.777779) to two decimal places (37.78) in C?
17 Answers
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How can I count all the lines of code in a directory recursively?
We've got a PHP application and want to count all the lines of code under a specific directory and its subdirectories. We don't need to ignore comments, as we're just trying to get a rough idea.
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UINavigationBar custom back button without title
How can I customize the navigation back button in iOS 7 and above without title? (i.e. with the arrow only)
36 Answers
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Git: How to squash all commits on branch
I make new branch from master with:
11 Answers
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How do I automatically scroll to the bottom of a multiline text box?
I have a textbox with the .Multiline property set to true. At regular intervals, I am adding new lines of text to it. I would like the textbox to automatically scroll to the bottom-most entry (the newest one) whenever a new line is added. How do I accomplish this?
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What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?
What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?
13 Answers
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