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Multiple GitHub Accounts & SSH Config
... needed to make to get this to work. In trying to get two profiles set up, one for personal and one for work, my ~/.ssh/config was roughly as follows:
Host me.github.com
HostName github.com
PreferredAuthentications publickey
IdentityFile ~/.ssh/me_rsa
Host work.github.com
HostName ...
Swift and mutating struct
...two separated classes for each concept, but in Swift, you can do this with one struct. Half work.
For C/C++ programmers, this is also very familiar concept. This is exactly what const keyword do in C/C++.
Also, immutable value can be very nicely optimised. In theory, Swift compiler (or LLVM) can p...
How can I check if a string is null or empty in PowerShell?
...
One thing to be aware of with PowerShell is that null strings passed to a commandlet or function don't stay null. They get converted to empty strings. See the Microsoft Connect bug at connect.microsoft.com/PowerShell/feedback...
How to implement a queue with three stacks?
... this link: http://www.eecs.usma.edu/webs/people/okasaki/jfp95/index.html
One of them is O(1) with three stacks BUT it uses lazy execution, which in practice creates extra intermediate data structures (closures).
Another of them is O(1) but uses SIX stacks. However, it works without lazy execution...
What is the difference between a generative and a discriminative algorithm?
...
When staring at the matrices observe that in the first one, all entries sum up to 1.0, while in the second one each row sums up to one. This will speed the enlightenment (and reduce confusion)
– Maxim Khesin
Aug 20 '13 at 17:58
...
What is the JavaScript convention for no operation?
...ere might be some performance issues associated with this (as is also mentioned by others in comments or in other answers).
However, that being said, you can easily define your own noop function and, infact, many libraries and frameworks also provide noop functions. Below are some examples:
var no...
What does the Reflect object do in JavaScript?
...iding the need for a global Proxy binding.
Most methods in this module map one-to-one onto Proxy traps. Proxy handlers need these methods to conveniently forward operations, as shown below.
So, the Reflect object provides a number of utility functions, many of which appear to overlap with ES5 me...
How do I check if a string contains a specific word?
...
You can use the strpos() function which is used to find the occurrence of one string inside another one:
$a = 'How are you?';
if (strpos($a, 'are') !== false) {
echo 'true';
}
Note that the use of !== false is deliberate (neither != false nor === true will return the desired result); strpos()...
Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
...
One more minor thing that tripped me up: in boost, destructor of a running thread detaches it ( boost.org/doc/libs/1_47_0/doc/html/thread/… ), while in C++, destructor of a running thread calls terminate() (FDIS 30.3.1.3)
...
Animate change of view controllers without using navigation controller stack, subviews or modal cont
... }];
}
Example use in a view controller
- (IBAction)flipToNextView
{
AnotherViewController *anotherVC = [[AnotherVC alloc] init...];
MyAppDelegate *appDelegate = (MyAppDelegate *)[UIApplication sharedApplication].delegate;
[appDelegate transitionToViewController:another...