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Why aren't pointers initialized with NULL by default?
... developer did not do it at the declaration point was he/she needed to perform some operation and then assign.
So now we have the situation that the compiler has added an extra instruction to the code that initializes the variable to NULL then later the developer code is added to do the correct ini...
Can I change multiplier property for NSLayoutConstraint?
...ine should always be the first line. because you have to deactivate one before activating the other one. or they will conflict.
zoomedConstraint.active = YES;
[self.view layoutIfNeeded]; // or using [UIView animate ...]
Swift 5.0 version
var standardConstraint: NSLayoutConstraint!
var zoomedConst...
Class does not implement its superclass's required members
So I updated to Xcode 6 beta 5 today and noticed I received errors in nearly all of my subclasses of Apple's classes.
4 Ans...
Rails 4: how to use $(document).ready() with turbo-links
I ran into an issue in my Rails 4 app while trying to organize JS files "the rails way". They were previously scattered across different views. I organized them into separate files and compile them with the assets pipeline. However, I just learned that jQuery's "ready" event doesn't fire on subseque...
What's the difference between & and && in MATLAB?
What is the difference between the & and && logical operators in MATLAB?
7 Answers
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When to use an assertion and when to use an exception
Most of the time I will use an exception to check for a condition in my code, I wonder when it is an appropriate time to use an assertion?
...
Differences between Octave and MATLAB? [closed]
...ython, Ruby and some C who is trying to decide whether to learn GNU Octave or Matlab. I know that they have a lot in common , but it isn't clear to me how similar the syntax is or even the data structures are. The above link shows several examples where they are syntactically similar or identical, ...
Could not reserve enough space for object heap
...
Run the JVM with -XX:MaxHeapSize=512m (or any big number as you need) (or -Xmx512m for short)
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Managing Sessions in Node.js? [closed]
...ntication, sessions, cookies, among others.
Other option is to use frameworks:
Express.js: http://expressjs.com/
It seems to be the most used node.js framework. Is like Sinatra for Ruby and runs on top of connect.
Geddy: http://geddyjs.org/
If you want to do more complex WebApps, Geddy is the on...
What's the best online payment processing solution? [closed]
..." type answer because like so many things it is a balance and the reasons for choosing a payment processing solution tend to be complex.
Volume / Value
The most important factor in choosing a secure payment clearance service (the people who will connect to the banking networks and clear the money fo...