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Should I use a data.frame or a matrix?
When should one use a data.frame , and when is it better to use a matrix ?
6 Answers
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What is Cache-Control: private?
...only on your own local machine):
Cache-Control: private
But the server forgot to include any sort of caching hints:
they forgot to include Expires, so the browser knows to use the cached copy until that date
they forgot to include Max-Age, so the browser knows how long the cached item is good...
How can I deploy/push only a subdirectory of my git repo to Heroku?
...ses Serve and is version controlled using Git. Serve creates an output folder with static files that I want to deploy to Heroku.
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What does an exclamation mark mean in the Swift language?
The Swift Programming Language guide has the following example:
22 Answers
22
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From inside of a Docker container, how do I connect to the localhost of the machine?
...ainer, I have a mysql running on localhost, I want to connect to the MySql from within my Nginx. The MySql is running on localhost and not exposing a port to the outside world, so its bound on localhost, not bound on the ip address of the machine.
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How can I efficiently select a Standard Library container in C++11?
There's a well known image (cheat sheet) called "C++ Container choice". It's a flow chart to choose the best container for the wanted usage.
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What techniques can be used to speed up C++ compilation times?
What techniques can be used to speed up C++ compilation times?
27 Answers
27
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What is a mixin, and why are they useful?
...ins". I'm from a C/C++/C# background and I have not heard the term before. What is a mixin?
16 Answers
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List changes unexpectedly after assignment. How do I clone or copy it to prevent this?
While using new_list = my_list , any modifications to new_list changes my_list everytime. Why is this, and how can I clone or copy the list to prevent it?
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How to access property of anonymous type in C#?
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If you want a strongly typed list of anonymous types, you'll need to make the list an anonymous type too. The easiest way to do this is to project a sequence such as an array into a list, e.g.
var nodes = (new[] { new { Check...