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How to determine the screen width in terms of dp or dip at runtime in Android?
...the layout of the android widgets using dip/dp (in java files). At runtime if I code,
int pixel=this.getWindowManager().getDefaultDisplay().getWidth() ;
...
What should every JavaScript programmer know? [closed]
...metimes-ugly details of how JavaScript and the DOM actually work from you. If your aim is to be able to say “I know JavaScript”, then investing a lot of time in a framework is opposed to that.
Here are some JavaScript language features that you should know to grok what it's doing and not get ca...
Random Gaussian Variables
...ution. A simple implementation:
Random rand = new Random(); //reuse this if you are generating many
double u1 = 1.0-rand.NextDouble(); //uniform(0,1] random doubles
double u2 = 1.0-rand.NextDouble();
double randStdNormal = Math.Sqrt(-2.0 * Math.Log(u1)) *
Math.Sin(2.0 * Math.PI * u2);...
Ruby equivalent of virtualenv?
...
RVM works closer to how virtualenv works since it lets you sandbox different ruby versions and their gems, etc.
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Safe integer parsing in Ruby
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This might work:
i.to_i if i.match(/^\d+$/)
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Reference: Comparing PHP's print and echo
What is the difference between PHP's print and echo ?
1 Answer
1
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How to retrieve a user environment variable in CMake (Windows)
...--unset=NAME]... [NAME=VALUE]... COMMAND [ARG]...
Run command in a modified environment.
Just be aware that this may only work the first time. If CMake re-configures with one of the consecutive builds (you just call e.g. make, one CMakeLists.txt was changed and CMake runs through the genera...
Truncate a list to a given number of elements
...}
}
You should bear in mind that subList returns a view of the items, so if you want the rest of the list to be eligible for garbage collection, you should copy the items you want to a new List:
List<String> subItems = new ArrayList<String>(items.subList(0, 2));
If the list is short...
PHP and MySQL - how to avoid password in source code? [duplicate]
...stead of the contents) or b) Move it outside of your web served directory. If somebody can see your configuration file, it's worse than having it in your source code.
It's also going to be a good idea to have a base (empty / default) version of the configuration file, and separate it out per enviro...
jQuery: fire click() before blur() event
... $(document).on('blur', "#myinput", hideResult); //rebind the handler if needed
});
function hideResult() {
$("#myresults").hide();
}
FIDDLE
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