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Lambda function in list comprehensions
...output of the following two list comprehensions different, even though f and the lambda function are the same?
6 Answer...
C++0x has no semaphores? How to synchronize threads?
...
You can easily build one from a mutex and a condition variable:
#include <mutex>
#include <condition_variable>
class semaphore
{
private:
std::mutex mutex_;
std::condition_variable condition_;
unsigned long count_ = 0; // Initialized as ...
Why am I not getting a java.util.ConcurrentModificationException in this example?
...s says in the Javadoc:
The iterators returned by this class's iterator and listIterator
methods are fail-fast: if the list is structurally modified at any
time after the iterator is created, in any way except through the
iterator's own remove or add methods, the iterator will throw a
Con...
UITableViewCell Separator disappearing in iOS7
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I dumped the subview hierarchy of affected cells and found that the _UITableViewCellSeparatorView was set to hidden. No wonder it's not shown!
I overrode layoutSubviews in my UITableViewCell subclass and now the separators are displayed reliably:
Objective-C:
- (void)lay...
How to get all properties values of a JavaScript Object (without knowing the keys)?
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If you're reading this answer and you might be possibly dealing with strings, you should definitely punch javascript in the face.
– user1228
Jan 28 '16 at 14:35
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How to do INSERT into a table records extracted from another table
I'm trying to write a query that extracts and transforms data from a table and then insert those data into another table. Yes, this is a data warehousing query and I'm doing it in MS Access. So basically I want some query like this:
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Using the star sign in grep
...ou need to tell it what you repeat. /*abc*/ matches a string containing ab and zero or more c's (because the second * is on the c; the first is meaningless because there's nothing for it to repeat). If you want to match anything, you need to say .* -- the dot means any character (within certain guid...
How to remove new line characters from a string?
... This was definitely the best solution for me. A smooth blend of this C# and javascript was all I needed to resolve my issue.
– Joe Brunscheon
Nov 26 '13 at 19:30
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fs: how do I locate a parent folder?
... answered Aug 16 '11 at 18:22
Andrew HareAndrew Hare
310k6363 gold badges611611 silver badges614614 bronze badges
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How to modify existing, unpushed commit messages?
...t commit. Additionally, you can set the commit message directly in the command line with:
git commit --amend -m "New commit message"
…however, this can make multi-line commit messages or small corrections more cumbersome to enter.
Make sure you don't have any working copy changes staged before do...