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How to Import .bson file format on mongodb
...he dump/dbName/collectionName.bson folder structure? I used mongodump, but now I want to import it using mongorestore on a remote Linux box.
– Kevin Meredith
Oct 4 '13 at 19:25
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Mongoose indexing in production code
...hen you define (compile) your model. I do that when I first start the app. Now the hard think is to decide to drop all indexes and recreate them, in case you schema changes.
– Moss
Jul 31 '13 at 12:15
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Providing a default value for an Optional in Swift?
...
Update
Apple has now added a coalescing operator:
var unwrappedValue = optionalValue ?? defaultValue
The ternary operator is your friend in this case
var unwrappedValue = optionalValue ? optionalValue! : defaultValue
You could also pr...
How can Perl's print add a newline by default?
...
The real danger comes from the fact that all code will now add newlines, even code in other people's modules that weren't expecting it. Imagine networking code that would have sent the message "helo\r\n" that now sends "helo\r\n\n".
– Chas. Owens
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Git merge errors
...h:
git checkout master
# Merge the topic branch into master - this should now be a fast-forward
# that leaves you with master exactly as 9-sign-in-out was:
git merge 9-sign-in-out
share
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improve ...
Why cast an unused function parameter value to void?
...For example if you do have the following statement:
ud;
This warning is now suppressed. However now GCC will produce another warning:
unused.c:5:5: warning: statement with no effect [-Wunused-value]
ud;
^~
This warning tells that the statement ud;, while being syntactically valid C, ...
CSS transition effect makes image blurry / moves image 1px, in Chrome?
... (counter-)clockwise.
Translate Z-axis to always have a zero value.
Chrome now handles backface-visibility and transform without the -webkit- prefix. I currently don't know how this affects other browsers rendering (FF, IE), so use the non-prefixed versions with caution.
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How to get pixel data from a UIImage (Cocoa Touch) or CGImage (Core Graphics)?
...ke(0, 0, width, height), imageRef);
CGContextRelease(context);
// Now your rawData contains the image data in the RGBA8888 pixel format.
NSUInteger byteIndex = (bytesPerRow * y) + x * bytesPerPixel;
for (int i = 0 ; i < count ; ++i)
{
CGFloat alpha = ((CGFloat) rawDat...
scala vs java, performance and memory? [closed]
....length()>2 && mapping.get(s) != null) b.add(mapping.get(s));
Now not only did I save the time it took me to type full variable names and curly braces (freeing me to spend 5 more seconds to think deep algorithmic thoughts), but I can also enter my code in obfuscation contests and potent...
Pass arguments to Constructor in VBA
... String, age as Integer)
m_name = name
m_age = age
End Sub
And now in the factory module:
Public Function CreateEmployee(name as String, age as Integer) as Employee
Dim employee_obj As Employee
Set employee_obj = new Employee
employee_obj.InitiateProperties name:=name, age...