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How do I output coloured text to a Linux terminal?
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13 Answers
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Which, if any, C++ compilers do tail-recursion optimization?
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131
All current mainstream compilers perform tail call optimisation fairly well (and have done for...
Simple logical operators in Bash
...o test if a file exists. There are also string equality operators: "$string1" == "$string2" (beware that the right-hand side is a pattern, e.g. [[ $foo == a* ]] tests if $foo starts with a while [[ $foo == "a*" ]] tests if $foo is exactly a*), and the familiar !, && and || operators for nega...
How to refresh / invalidate $resource cache in AngularJS
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116
Keep the boolean and get the $http cache:
var $httpDefaultCache = $cacheFactory.get('$http');...
How do I solve the INSTALL_FAILED_DEXOPT error?
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Converting an integer to a hexadecimal string in Ruby
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You can give to_s a base other than 10:
10.to_s(16) #=> "a"
Note that in ruby 2.4 FixNum and BigNum were unified in the Integer class.
If you are using an older ruby check the documentation of FixNum#to_s and BigNum#to_s
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Android Studio could not find any version that matches com.android.support:appcompat-v7:+
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10 Answers
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Run two async tasks in parallel and collect results in .NET 4.5
... {
Console.WriteLine("Starting");
var task1 = Sleep(5000);
var task2 = Sleep(3000);
int[] result = await Task.WhenAll(task1, task2);
Console.WriteLine("Slept for a total of " + result.Sum() + " ms");
}
private a...
Timeout a command in bash without unnecessary delay
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153
I think this is precisely what you are asking for:
http://www.bashcookbook.com/bashinfo/sourc...
How to count the number of set bits in a 32-bit integer?
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