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How to replace all occurrences of a string?
...king about performance. When I did wonder which was more efficient, and by what margin, I used it as an excuse to find out.
On my Chrome Windows 8 machine, the regular expression based implementation is the fastest, with the split and join implementation being 53% slower. Meaning the regular expre...
How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
...key(1), locks key(2);
it will be impossible to get a deadlock.
So this is what I suggest:
Make sure you have no other queries that lock access more than one key at a time except for the delete statement. if you do (and I suspect you do), order their WHERE in (k1,k2,..kn) in ascending order.
Fix y...
Load HTML file into WebView
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What is data variable? Please provide an example.
– IgorGanapolsky
Nov 2 '17 at 20:39
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Retrieve the commit log for a specific line in a file?
... "$browser_path" $NEWTAB "$@" &
And you want to know the history of what is now line 155.
Then, use git log. Here, -L 155,155:git-web--browse.sh means "trace the evolution of lines 155 to 155 in the file named git-web--browse.sh".
$ git log --pretty=short -u -L 155,155:git-web--browse.sh
co...
How do I reattach to a detached mosh session?
... @Jordan: On some systems (Solaris, for example), killall does exactly what it says.
– Paused until further notice.
Jan 12 '15 at 15:44
4
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std::vector versus std::array in C++
What are the difference between a std::vector and an std::array in C++? When should one be preferred over another? What are the pros and cons of each? All my textbook does is list how they are the same.
...
NSString with \n or line break
...e Role Play on facebook for 50 free coins.";
NSString *str3 = @"Check out 'What's Hot' on other ways to receive free coins";
NSString *msg = [NSString stringWithFormat:@"%@\n%@\n%@", str1, str2, str3];
share
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Database sharding vs partitioning
...ables or databases. Sharding is one specific type of partitioning, part of what is called horizontal partitioning.
Here you replicate the schema across (typically) multiple instances or servers, using some kind of logic or identifier to know which instance or server to look for the data. An identif...
How to tell if rails is in production?
...ust add
<%= "Environment: #{RAILS_ENV}" %>
And that will show you what the environment that you're running in.
edit
You will see the default exception page instead of the actual error pages on any environment if the request is considered "local" (that is from localhost or 127.0.0.1), yo...
How to improve performance of ngRepeat over a huge dataset (angular.js)?
...t only to as many elements as the user can see.
If you do something like what's commonly known as "infinite scrolling", you're reducing the initial DOM count somewhat, but it bloats quickly after a couple refreshes, because all those new elements are just tacked on at the bottom. Scrolling comes t...