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Why aren't pointers initialized with NULL by default?
...ion 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 initialization. Or under other conditions t...
Changing selection in a select with the Chosen plugin
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FYI: they've updated to 1.0 which now uses chosen:updated instead of liszt:updated
– Henesnarfel
Jul 31 '13 at 14:10
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How to architect an Ember.js application
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Fair point @JKillian. I know there is a concern about Ember's learning curve, for those reasons. While Ember-cli does introduce some complexity (Ember-data & Broccoli), it removes significant confusion around vendor requirements and structuring ...
How to get a random number in Ruby
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@yar: It is a bit "perlish". Now Ruby has it's Random class (see my answer)
– Marc-André Lafortune
May 5 '10 at 14:02
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Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
...ated to be an in-memory key-value store(though it does much more than that now; its even referred to as a swiss army knife). Still, I've read/heard many people achieving good results with Redis for smaller sized projects, but haven't heard much about it in larger applications.
Here is an example of...
What is this 'Lambda' everyone keeps speaking of?
...re a variable. In JavaScript:
function () {}; // very simple
Let's see now some uses for these lambdas.
Abstracting boilerplate code
Lambdas may be used to abstract away boilerplate code. For example loops. We're used to write for and while loops all day long. But this is code that does not be...
Create space at the beginning of a UITextField
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This is what I am using right now:
Swift 4.2
class TextField: UITextField {
let padding = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 5)
override open func textRect(forBounds bounds: CGRect) -> CGRect {
return bounds.inset(by: p...
NSUserDefaults - How to tell if a key exists
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I know this is old, but having only just now needed this information, I need to point out that the 'containsObject:' reference means just that: the object. NOT the key. IOW, in your header file if you've defined: #define kMyKey ...
How to clear the cache in NetBeans
...cognized as implementing Throwable... I just deleted the stupid cache, and now all of it works fine.
– Ian Campbell
Sep 20 '13 at 0:59
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Returning a C string from a function
...ing like "my string" actually uses 9+1 (=10!) bytes. This is important to know when you finally get around to allocating strings dynamically.
So, without this 'terminating zero', you don't have a string. You have an array of characters (also called a buffer) hanging around in memory.
Longevity of ...