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How to become an OpenCart guru? [closed]
...d be easy to understand if you're familiar with the extract() method which converts each key into a variable. So the example_var key becomes $example_var and can be accessed as such in the view.
Understanding themes
Themes are available to the catalog side only, and are basically a folder of tem...
what is the unsigned datatype?
...
unsigned really is a shorthand for unsigned int, and so defined in standard C.
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How to get current CPU and RAM usage in Python?
...ent()
# gives an object with many fields
psutil.virtual_memory()
# you can convert that object to a dictionary
dict(psutil.virtual_memory()._asdict())
# you can have the percentage of used RAM
psutil.virtual_memory().percent
79.2
# you can calculate percentage of available memory
psutil.virtual_mem...
How can I make a WPF combo box have the width of its widest element in XAML?
...inForms AutoSizeMode=GrowOnly.
The way I did this was with a custom value converter:
public class GrowConverter : IValueConverter
{
public double Minimum
{
get;
set;
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{...
What characters are allowed in an email address?
...sically makes a character-based approach useless (sorry), unless you first convert the internationalized email addresses to Punycode.
After doing that you can follow (most of) the advice above.
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mongodb, replicates and error: { “$err” : “not master and slaveOk=f...
出现这个错误的原因是在从库上执行命令导致，默认情况下只有主库可以执行命令。
当然可以通过设置使得从库也能执行命令，具体参见：
http://stackoverflow.com/questions/8990158/mongodb-replicates-and-error-err-not-master-and-slaveok-false-code
What is JSON and why would I use it?
...ks mson)
Using JSON with Yahoo! Web Services (Thanks gljivar)
JSON to CSV Converter
Alternative JSON to CSV Converter
JSON Lint (JSON validator)
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Check if two lists are equal [duplicate]
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Slow and doesn't handle duplicates. [1, 1, 2] != [1, 2, 2]
– CodesInChaos
Mar 4 '14 at 15:42
1
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Best way to use PHP to encrypt and decrypt passwords? [duplicate]
...rim($decrypttext);
}
}
And to call it:
$str = "My secret String";
$converter = new Encryption;
$encoded = $converter->encode($str );
$decoded = $converter->decode($encoded);
echo "$encoded<p>$decoded";
...
When to use NSInteger vs. int
...nteger/NSUInteger are defined as *dynamic typedef*s to one of these types, and they are defined like this:
#if __LP64__ || TARGET_OS_EMBEDDED || TARGET_OS_IPHONE || TARGET_OS_WIN32 || NS_BUILD_32_LIKE_64
typedef long NSInteger;
typedef unsigned long NSUInteger;
#else
typedef int NSInteger;
typedef ...