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How do I choose between Semaphore and SemaphoreSlim?
...blic interfaces appear similar. The documentation states that the SemaphoreSlim is a lightweight alternative and doesn't use Windows Kernel semaphores. This resource states that the SemaphoreSlim is much faster. In what situations does the SemaphoreSlim make more sense over the Semaphore and ...
C++, Free-Store vs Heap
...ynamic allocations with new/delete are said to take place on the free-store , while malloc/free operations use the heap .
I'd like to know if there is an actual difference, in practice.
Do compilers make a distinction between the two terms? ( Free store and Heap , not new/malloc )
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How to get the python.exe location programmatically? [duplicate]
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This works in Linux & Windows:
Python 3.x
>>> import sys
>>> print(sys.executable)
C:\path\to\python.exe
Python 2.x
>>> import sys
>>> print sys.executable
/usr/bin/python
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c# datatable insert column at position 0
...umns.Add("Column Name", System.Type.GetType("System.Boolean"));
Col.SetOrdinal(0);// to put the column in position 0;
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How do I do a multi-line string in node.js?
With the rise of node.js, multi-line strings are becoming more necessary in JavaScript.
9 Answers
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Converting a list to a set changes element order
Recently I noticed that when I am converting a list to set the order of elements is changed and is sorted by character.
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Multiline bash commands in makefile
I have a very comfortable way to compile my project via a few lines of bash commands. But now I need to compile it via makefile. Considering, that every command is run in its own shell, my question is what is the best way to run multi-line bash command, depended on each other, in makefile?
For exa...
Finding Variable Type in JavaScript
In Java, you can use instanceOf or getClass() on a variable to find out its type.
9 Answers
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java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare();
...ctivity to push to the user interface and threads don't have that.
So one workaround is to give the thread a link to the parent Activity and Toast to that.
Put this code in the thread where you want to send a Toast message:
parent.runOnUiThread(new Runnable() {
public void run() {
Toas...
How does the MapReduce sort algorithm work?
...examples that is used in demonstrating the power of MapReduce is the Terasort benchmark . I'm having trouble understanding the basics of the sorting algorithm used in the MapReduce environment.
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