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How far can memory leaks go?
...erating system maintains: memory, open files, network connections, window handles...
That said, if the program is running on an embedded system without an operating system, or with a very simple or buggy operating system, the memory might be unusable until a reboot. But if you were in that situatio...
What's the _ underscore representative of in Swift References?
... is used to modify external parameter name behavior for methods.
In Local and External Parameter Names for Methods section of the documentation, it says:
Swift gives the first parameter name in a method a local parameter name by default, and gives the second and subsequent parameter names both ...
What is an NP-complete in computer science?
...
NP stands for Non-deterministic Polynomial time.
This means that the problem can be solved in Polynomial time using a Non-deterministic Turing machine (like a regular Turing machine but also including a non-deterministic "choice"...
Why is printing to stdout so slow? Can it be sped up?
...ement. After some recent painfully slow logging I decided to look into it and was quite surprised to find that almost all the time spent is waiting for the terminal to process the results.
...
Precise Financial Calculation in JavaScript. What Are the Gotchas?
...ication in JavaScript. The calculations required involve compound interest and relatively long decimal numbers. I'd like to know what mistakes to avoid when using JavaScript to do this type of math—if it is possible at all!
...
How to create a generic array in Java?
...i.e. its constructor was explicitly called with a Class<E> argument, and methods will throw an exception when they are passed arguments that are not of type E. See Collections.checkedCollection.
-> in that case, you should write:
public class GenSet<E> {
private E[] a;
pub...
How to generate .NET 4.0 classes from xsd?
...
simple enough; just run (at the vs command prompt)
xsd your.xsd /classes
(which will create your.cs). Note, however, that most of the intrinsic options here haven't changed much since 2.0
For the options, use xsd /? or see MSDN; for example /enableDataBinding ...
Check if page gets reloaded or refreshed in JavaScript
...ome had recently change this behavior. When user click current address bar and hit enter, the value of performance.navigation.type will be 1 which should be 0. I tested in Version 56. Not sure why.
– Jackwin tung
Feb 19 '17 at 9:28
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git add, commit and push commands in one?
Is there any way to use these three commands in one?
32 Answers
32
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Can the Unix list command 'ls' output numerical chmod permissions?
...
For creating it as an alias (example below: 'cls' command), use: alias cls="ls -l | awk '{k=0;for(i=0;i<=8;i++)k+=((substr(\$1,i+2,1)~/[rwx]/)*2^(8-i));if(k)printf(\"%0o \",k);print}'"
– danger89
Mar 6 '14 at 16:15
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