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How can I convert a datetime object to milliseconds since epoch (unix time) in Python?
... is a true unix timestamp as defined here en.wikipedia.org/wiki/Unix_time (and so will only be using the unix_time function from this answer) then you should wrap delta.total_seconds() with int to avoid ending up with a float
– corford
Dec 30 '14 at 11:20
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How to check if a variable is set in Bash?
...ar+x} is a parameter expansion which evaluates to nothing if var is unset, and substitutes the string x otherwise.
Quotes Digression
Quotes can be omitted (so we can say ${var+x} instead of "${var+x}") because this syntax & usage guarantees this will only expand to something that does not requ...
Git merge left HEAD marks in my files
I tried to merge a file in the command line using Git, when an error message appeared telling me the merge was aborted.
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Preferred way of loading resources in Java
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it will attempt to load foo.txt from the same package as the "this" class and with the class loader of the "this" class. If you put a "/" in front then you are absolutely referencing the resource.
this.getClass().getResource("/x/y/z/foo.txt")
will load the resource from the class loader of "this...
Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?
While most apple documents are very well written, I think ' Event Handling Guide for iOS ' is an exception. It's hard for me to clearly understand what's been described there.
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How can I present a file for download from an MVC controller?
...r present a "Download File" popup with an arbitrary file type, like a PDF, and a filename:
7 Answers
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What do < and > stand for?
I know that the entities &lt; and &gt; are used for < and > , but I am curious what these names stand for.
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What does bundle exec rake mean?
...does bundle exec rake db:migrate mean? Or just bundle exec rake <command> in general?
7 Answers
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XML Validation with XSD in Visual Studio IDE
...menu View > Error List). This will show all inconsistencies between XML and XSD schema definitions.
Once all of that is in place, the Visual Studio XML editor should highlight problems with your XML in the editor using blue squigglies:
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What is declarative programming? [closed]
...n you write your code in such a way that it describes what you want to do, and not how you want to do it. It is left up to the compiler to figure out the how.
Examples of declarative programming languages are SQL and Prolog.
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