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Converting datetime.date to UTC timestamp in Python
...)
Interesting read: Epoch time vs. time of day on the difference between What time is it? and How many seconds have elapsed?
See also: datetime needs an "epoch" method
Python 2
To adapt the above code for Python 2:
timestamp = (dt - datetime(1970, 1, 1)).total_seconds()
where timedelta.total...
Difference between “process.stdout.write” and “console.log” in node.js?
What is the difference between "process.stdout.write" and "console.log" in node.js?
8 Answers
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Understanding ibeacon distancing
...stance in meters. This formula isn't perfect, but it roughly approximates what iOS does.
protected static double calculateAccuracy(int txPower, double rssi) {
if (rssi == 0) {
return -1.0; // if we cannot determine accuracy, return -1.
}
double ratio = rssi*1.0/txPower;
if (ratio <...
Dealing with commas in a CSV file
...
Put double quotes around strings. That is generally what Excel does.
Ala Eli,
you escape a double quote as two
double quotes. E.g.
"test1","foo""bar","test2"
share
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How to simulate Server.Transfer in ASP.NET MVC?
...nsferToRouteResult which in turn calls executes the TransferResult. Here's what's actually running on my production servers.
public class TransferToRouteResult : ActionResult
{
public string RouteName { get;set; }
public RouteValueDictionary RouteValues { get; set; }
public TransferToR...
How to convert an Array to a Set in Java
... Collections.addAll(java.util.Collection, T...) from JDK 6.
Additionally: what if our array is full of primitives?
For JDK < 8, I would just write the obvious for loop to do the wrap and add-to-set in one pass.
For JDK >= 8, an attractive option is something like:
Arrays.stream(intArray).b...
What's the difference between a proc and a lambda in Ruby?
... Proc.new and in all Ruby versions it should be avoided.
So then you ask what is the difference between lambda and Proc.new?
First, in terms of parameter passing, lambda behaves like a method call. It will raise an exception if you pass the wrong number of arguments. In contrast, Proc.new behave...
How to test multiple variables against a value?
...tage of the constant-cost membership test (in takes a fixed amount of time whatever the left-hand operand is).
When you use or, python sees each side of the operator as separate expressions. The expression x or y == 1 is treated as first a boolean test for x, then if that is False, the expression y...
Android - get children inside a View?
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What's the best way to do this recursively and thereby generate a view heirarchy JSON object?
– jimbob
Oct 25 '16 at 10:17
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Can I save the window layout in Visual Studio 2010/2012/2013?
...s to their previous layout. (Note that the wizard also allows you to limit what you import from a particular settings file the same way you can limit what you export.)
I use this on my laptop, where switching back and forth between single and multiple monitor setups turns window management into a r...