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ES6 class variable alternatives
...you prefix the method name with the class name (IE: MyClassProperties() in order to avoid accidentally overriding function calls within sub classes. Also, keep in mind that any calls to super() must be declared first in the class constructor.
– Chunky Chunk
Se...
Xcode 4.5 Storyboard 'Exit'
...ed view controller, as opposed to all the work you had to do previously in order to hand info back and forth (the stuff in the template with a delegate and a protocol, all of which can now be deleted).
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How to make a class property? [duplicate]
... base classes of type(a) excluding metaclasses.
So the method resolution order doesn't include our class properties (or anything else defined in the metaclass). It is possible to make a subclass of the built-in property decorator that behaves differently, but (citation needed) I've gotten the impr...
How can I pipe stderr, and not stdout?
...nd 2>&1 >/dev/null | grep 'something'
Here is what happens, in order:
a pipe (fifo) is created. "command FD1" is pointed to this pipe. "grep FD0" also is pointed to this pipe
"command FD2" is pointed to where "command FD1" currently points (the pipe)
"command FD1" is pointed to /dev/nu...
What's the best way to trim std::string?
...
if you change the order in trim, i.e. make it rtrim(ltrim(s, t), t) it will be slightly more efficient
– CITBL
Jan 7 '19 at 18:31
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How to remove RVM (Ruby Version Manager) from my system
...This will remove the rvm/ directory and all the rubies built within it. In order to remove the final trace of rvm, you need to remove the rvm gem, too:
gem uninstall rvm
If you've made modifications to your PATH you might want to pull those, too. Check your .bashrc, .profile and .bash_profile fil...
Why escape_javascript before rendering a partial?
...).append("<a href="/mycontroller/myaction">Action!</a>");
In order for this not to happen, you want to escape these special characters so your string is not cut - you need something that generates this instead:
<a href=\"/mycontroller/myaction\">Action!</a>
This what esc...
Request is not available in this context
... will also need some additional configuration on your log4net appenders in order for them to log your custom data.
This solution can be easily implemented as a custom log enhancement module. Here is sample code for it:
using System;
using System.Web;
using log4net;
using log4net.Core;
namespace Y...
What's wrong with nullable columns in composite primary keys?
...
In order for a foreign key to work the refered must be unique (ie. all values must be distinct). Which means that it could have a single null value. All the null values could then refer to that single null if the REFERENCES woul...
Understanding the difference between __getattr__ and __getattribute__
...est' superclass (formally, the next class in the class's Method Resolution Order, or MRO) to the current object self and then calls it and lets that do the work.
All of this trouble is avoided by using __getattr__ which lets Python do it's normal thing until an attribute isn't found. At that point,...