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How do you query for “is not null” in Mongo?
..., the query returns only the documents that do not contain the field.
$ne selects the documents where the value of the field is not equal to the specified value. This includes documents that do not contain the field.
So in your provided case following query going to return all the documents with i...
How do you add an in-app purchase to an iOS application?
...he app you want do add the purchase to
Click the Features header, and then select In-App Purchases on the left
Click the + icon in the middle
For this tutorial, we are going to be adding an in-app purchase to remove ads, so choose non-consumable. If you were going to send a physical item to the user...
Path to Powershell.exe (v 2.0)
...
Here is one way...
(Get-Process powershell | select -First 1).Path
Here is possibly a better way, as it returns the first hit on the path, just like if you had ran Powershell from a command prompt...
(Get-Command powershell.exe).Definition
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Capistrano error tar: This does not look like a tar archive
...epo, and run git branch.
It's running git archive as a way to export the selected branch's tree. git archive "writes it out to the standard output" so Capistrano redirects that to tar in order to uncompress the archive immediately into your new release directory.
(Why Capistrano chose this instead...
Configuration With Same Name Already Exists
...n the table, Click the dropdown in the Platform column for the project and select , to add a new platform.
Click OK.
Repeat adding new platforms as needed.
Save the project.
Return the previously moved solution file back to where it was.
Reopen the combined project solution.
sour...
Java SE 6 vs. JRE 1.6 vs. JDK 1.6 - What do these mean?
... intepretation to execute and analyze the code before compiling/optimizing selected parts of the program.
– John Nilsson
Sep 7 '10 at 15:20
add a comment
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Multiple file extensions in OpenFileDialog
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Based on First answer here is the complete image selection options:
Filter = @"|All Image Files|*.BMP;*.bmp;*.JPG;*.JPEG*.jpg;*.jpeg;*.PNG;*.png;*.GIF;*.gif;*.tif;*.tiff;*.ico;*.ICO
|PNG|*.PNG;*.png
|JPEG|*.JPG;*.JPEG*.jpg;*.jpeg
|Bitmap(.B...
How to access route, post, get etc. parameters in Zend Framework 2
...ue
To get the value of a named parameter in a controller, you will need to select the appropriate method for the type of parameter you are looking for and pass in the name.
Examples:
$this->params()->fromPost('paramname'); // From POST
$this->params()->fromQuery('paramname'); // From ...
How to list commits since certain commit?
...arse.html -- also see the manual git-scm.com/book/en/v2/Git-Tools-Revision-Selection -- or stackoverflow.com/questions/2221658/…
– Michaelangel007
Jan 20 '17 at 18:34
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Disabled href tag
...doesn't have a disabled attribute, that's just for <input>s (and <select>s and <textarea>s).
To "disable" a link, you can remove its href attribute, or add a click handler that returns false.
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