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What is the difference between the bridge pattern and the strategy pattern?
...tics. From wikipedia:
The UML class diagram for the Strategy
pattern is the same as the diagram for
the Bridge pattern. However, these two
design patterns aren't the same in
their intent. While the Strategy
pattern is meant for behavior, the
Bridge pattern is meant for structure.
...
PHP ORMs: Doctrine vs. Propel
I'm starting a new project with symfony which is readily integrated with Doctrine and Propel , but I of course need to make a choice.... I was wondering if more experienced people out there have general pros and/or cons for going with either of these two?
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Detect the Internet connection is offline?
How to detect the Internet connection is offline in JavaScript?
18 Answers
18
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Difference between if () { } and if () : endif;
...
They are the same but the second one is great if you have MVC in your code and don't want to have a lot of echos in your code. For example, in my .phtml files (Zend Framework) I will write something like this:
<?php if($this->value): ?>
Hello
<?php ...
What is the meaning of prepended double colon “::”?
I found this line of a code in a class which I have to modify:
9 Answers
9
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What should my Objective-C singleton look like? [closed]
My singleton accessor method is usually some variant of:
26 Answers
26
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How to check whether a pandas DataFrame is empty?
How to check whether a pandas DataFrame is empty? In my case I want to print some message in terminal if the DataFrame is empty.
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How do I generate a random int number?
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The Random class is used to create random numbers. (Pseudo-random that is of course.).
Example:
Random rnd = new Random();
int month = rnd.Next(1, 13); // creates a number between 1 and 12
int dice = rnd.Next(1, 7); // creates a numbe...
What's the difference between utf8_general_ci and utf8_unicode_ci?
...re both for the UTF-8 character encoding. The differences are in how text is sorted and compared.
Note: In MySQL you have to use utf8mb4 rather than utf8. Confusingly, utf8 is a flawed UTF-8 implementation from early MySQL versions which remains only for backward compatibility. The fixed version wa...
What is the difference between And and AndAlso in VB.NET?
In VB.NET, what is the difference between And and AndAlso ? Which should I use?
11 Answers
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