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Checking for empty queryset in Django
What is the recommended idiom for checking whether a query returned any results?
Example:
7 Answers
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How to delete a row by reference in data.table?
My question is related to assignment by reference versus copying in data.table . I want to know if one can delete rows by reference, similar to
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Difference between JSONObject and JSONArray
After having a short look at Google I found this link that describes the difference, yet from a syntax point of view.
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How do I make curl ignore the proxy?
How do I make curl ignore the proxy?
Setting $NO_PROXY doesn't seem to work for me.
12 Answers
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`static` keyword inside function?
I was looking at the source for Drupal 7, and I found some things I hadn't seen before. I did some initial looking in the php manual, but it didn't explain these examples.
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How to use a keypress event in AngularJS?
I want to catch the enter key press event on the textbox below. To make it more clear I am using a ng-repeat to populate the tbody. Here is the HTML:
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How do I shutdown, restart, or log off Windows via a bat file?
I've been using Remote Desktop Connection to get into a workstation. But in this environment, I cannot use the power options in Start Menu. I need an alternative way to shutdown or restart.
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How to Customize a Progress Bar In Android
I am working on an app in which I want to show a ProgressBar , but I want to replace the default Android ProgressBar .
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Regular Expression to reformat a US phone number in Javascript
I'm looking to reformat (replace, not validate - there are many references for validating) a phone number for display in Javascript. Here's an example of some of the data:
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