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How to normalize a path in PowerShell?
...anded path.
Since cd (Set-Location) doesn't change the process current working directory, simply passing a relative file name to a .NET API that doesn't understand PowerShell context, can have unintended side-effects, such as resolving to a path based off the initial working directory (not your cur...
How to get current time and date in C++?
...
In C++ 11 you can use std::chrono::system_clock::now()
Example (copied from en.cppreference.com):
#include <iostream>
#include <chrono>
#include <ctime>
int main()
{
auto start = std::chrono::system_clock::now();
// Some computation here
...
Ruby Array find_first object?
...ray which contains up to one object satisfying a certain criterion. I'd like to efficiently find that object. The best idea I have from the docs is this:
...
Send POST request using NSURLSession
...:@"POST"];
NSDictionary *mapData = [[NSDictionary alloc] initWithObjectsAndKeys: @"TEST IOS", @"name",
@"IOS TYPE", @"typemap",
nil];
NSData *postData = [NSJSONSerialization dataWithJSONObject:mapData options:0 error:&error];
[request setHTTPBody:postDat...
Which Java Collection should I use?
...
Since I couldn't find a similar flowchart I decided to make one myself.
This flow chart does not try and cover things like synchronized access, thread safety etc or the legacy collections, but it does cover the 3 standard Sets, 3 standard Maps and 2 standard Lists.
This image w...
What special characters must be escaped in regular expressions?
...m tired of always trying to guess, if I should escape special characters like ' ()[]{}| ' etc. when using many implementations of regexps.
...
Keyboard Interrupts with python's multiprocessing Pool
How can I handle KeyboardInterrupt events with python's multiprocessing Pools? Here is a simple example:
10 Answers
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How to have multiple data-bind attributes on one element?
...
Like this:
<a data-bind="html: name, attr: { href: url }">
You use comma-separated bindings - the attribute is the same as passing an object:
{
html: name,
attr: { href: url }
}
Or, if you're asking abou...
Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
...
The reason for first one working:
From MSDN:
In string concatenation operations,the C# compiler treats a null string the same as an empty string, but it does not convert the value of the original null string.
More information on the + binary operator:...
How to pattern match using regular expression in Scala?
I would like to be able to find a match between the first letter of a word, and one of the letters in a group such as "ABC". In pseudocode, this might look something like:
...