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Python string.replace regular expression [duplicate]
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re.sub is definitely what you are looking for. And so you know, you don't need the anchors and the wildcards.
re.sub(r"(?i)interfaceOpDataFile", "interfaceOpDataFile %s" % filein, line)
will do the same thing--matching the first substring tha...
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...
When is SQLiteOpenHelper onCreate() / onUpgrade() run?
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@Jaskey The version number is for your code i.e. what schema version the code expects to run against. If the file is older (from a previous version of your app), it needs to be upgraded.
– laalto
Oct 13 '14 at 11:26
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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.
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Python loop counter in a for loop [duplicate]
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gs, what if you only need to get the element every once in a while, but you need the index every time? It seems like in those situations this could be beneficial because you aren't creating a new variable each time.
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How can I copy data from one column to another in the same table?
...mnA. Like other answer says - don't forget the WHERE clause to update only what's needed.
– Carl di Ortus
Feb 9 '18 at 8:45
5
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How to change a git submodule to point to a subfolder?
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What you want to do is create a branch in the submodule and move the folder up and delete what you don't need. You can then manage that branch instead. If you want to push up your changes, you should be able to back merge fir...
Never seen before C++ for loop
..."u--" in two separate places, and the loop isn't really clearer (I can see what the for loop does in one glance; I have to scan with multiple lines). Being terse has benefits too. Don't downplay them. Still though, a good example of how else it could be written. It does make it easier to understand ...