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Controlling fps with requestAnimationFrame?

...e for the most part, but right now I'm trying to do some canvas animations and I was wondering: Is there any way to make sure it runs at a certain fps? I understand that the purpose of rAF is for consistently smooth animations, and I might run the risk of making my animation choppy, but right now it...
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Efficiently test if a port is open on Linux?

...mp;6 I'm using 6 as the file descriptor because 0,1,2 are stdin, stdout, and stderr. 5 is sometimes used by Bash for child processes, so 3,4,6,7,8, and 9 should be safe. As per the comment below, to test for listening on a local server in a script: exec 6<>/dev/tcp/127.0.0.1/445 || echo "N...
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Python function overloading

...what you want in python. Why Not Overloading? First, one needs to understand the concept of overloading and why it's not applicable to python. When working with languages that can discriminate data types at compile-time, selecting among the alternatives can occur at compile-time. The act o...
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What does principal end of an association means in 1:1 relationship in Entity framework

... In one-to-one relation one end must be principal and second end must be dependent. Principal end is the one which will be inserted first and which can exist without the dependent one. Dependent end is the one which must be inserted after the principal because it has foreign...
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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?

How would it be possible to generate a random, unique string using numbers and letters for use in a verify link? Like when you create an account on a website, and it sends you an email with a link, and you have to click that link in order to verify your account ...
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git switch branch without discarding local changes

Alright, lets say one day we make happen to make a bunch of modifications and when we go to commit them we notice we were working on the wrong branch. ...
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How to redirect cin and cout to files?

How can I redirect cin to in.txt and cout to out.txt ? 5 Answers 5 ...
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What rules does software version numbering follow? [duplicate]

I have been developing some software and want to give it version numbers. 3 Answers 3 ...
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How to tell if JRE or JDK is installed

... testing. However, when I got a java application working on this computer, and then tried it on another, it complained that JDK was required. How can I check if JDK was somehow installed on my system? Note: the computer in question is a Mac. ...
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Shell command to sum integers, one per line?

I am looking for a command that will accept (as input) multiple lines of text, each line containing a single integer, and output the sum of these integers. ...