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How do I enter RGB values into Interface Builder?
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Click on the color slider icon, and then choose "RGB Sliders" from the drop-down list.
You can also use the magnifying-glass as a color picker to pick up an exact color from anywhere on the screen; also see @ken's excellent comment below clarifying how col...
How to copy from CSV file to PostgreSQL table with headers in CSV file?
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I think the problem with this command is, that you have to be the DB superuser. \copy works as normal user, too
– Exocom
Feb 8 '14 at 13:00
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How to open a web server port on EC2 instance
...to the "Network & Security" -> Security Group settings in the left hand navigation
Find the Security Group that your instance is apart of
Click on Inbound Rules
Use the drop down and add HTTP (port 80)
Click Apply and enjoy
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How to delete a folder and all contents using a bat file in windows?
I want to delete a folder with all files and subfolders using a bat file.
3 Answers
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Best practices: throwing exceptions from properties
...eed to throw. For setters they indicate that exceptions are an appropriate and acceptable error handling strategy.
For indexers, Microsoft indicates that it is acceptable for both getters and setters to throw exceptions. And in fact, many indexers in the .NET library do this. The most common except...
Why doesn't JavaScript support multithreading?
...however use, as was suggested, setTimeout to allow some sort of scheduling and “fake” concurrency. This causes the browser to regain control of the rendering thread, and start the JavaScript code supplied to setTimeout after the given number of milliseconds. This is very useful if you want to al...
Nested classes' scope?
I'm trying to understand scope in nested classes in Python. Here is my example code:
6 Answers
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What is the difference between C, C99, ANSI C and GNU C?
I have started programming practice on codechef and have been confused by the difference between C and C99. What does C mean here? Is it C89? Check the languages at the bottom of this submit . It contains both C and C99.
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What is a semaphore?
...t should let the guests go in sequentially, but when i tried it out, it's random. Eg. Guest 40 came in first before Guest 39. Is there anything we could do to control this?
– TNA
May 31 '14 at 9:12
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How to overcome root domain CNAME restrictions?
...rd with CNAMEs. Use them when renaming hosts, but plan to get rid of them (and inform your users).
Some DNS hosts provide a way to get CNAME-like functionality at the zone apex (the root domain level, for the naked domain name) using a custom record type. Such records include, for example:
ALIAS...