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How to get existing fragments when using FragmentPagerAdapter
...Adapter just as same as it is provided by the Android sample project Support4Demos .
13 Answers
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Is there a difference between foreach and map?
Ok this is more of a computer science question, than a question based on a particular language, but is there a difference between a map operation and a foreach operation? Or are they simply different names for the same thing?
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How do I get the list of keys in a Dictionary?
...bout whether yourDictionary is part of the object, derived in the function or the name a parameter.
– bcdan
Nov 5 '15 at 12:09
2
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Dynamically updating plot in matplotlib
I am making an application in Python which collects data from a serial port and plots a graph of the collected data against arrival time. The time of arrival for the data is uncertain. I want the plot to be updated when data is received. I searched on how to do this and found two methods:
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Conversion of System.Array to List
...t...
List<int> lst = new List<int> { 10, 20, 10, 34, 113 };
or...
List<int> lst = new List<int>();
lst.Add(10);
lst.Add(20);
lst.Add(10);
lst.Add(34);
lst.Add(113);
or...
List<int> lst = new List<int>(new int[] { 10, 20, 10, 34, 113 });
or...
var lst = n...
Saving vim macros
Does anyone know how to properly save/reuse macros recorded inside of a vim editor?
6 Answers
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How to detect Adblock on my website?
...ey are using it, I want to display a message asking them to turn it off in order to support the project, like this website does.
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Get the index of the object inside an array, matching a condition
... of 2016, you're supposed to use Array.findIndex (an ES2015/ES6 standard) for this:
a = [
{prop1:"abc",prop2:"qwe"},
{prop1:"bnmb",prop2:"yutu"},
{prop1:"zxvz",prop2:"qwrq"}];
index = a.findIndex(x => x.prop2 ==="yutu");
console.log(index);
It's supported in Google ...
What are the differences between “=” and “
What are the differences between the assignment operators = and <- in R?
7 Answers
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Copy file or directories recursively in Python
Python seems to have functions for copying files (e.g. shutil.copy ) and functions for copying directories (e.g. shutil.copytree ) but I haven't found any function that handles both. Sure, it's trivial to check whether you want to copy a file or a directory, but it seems like a strange omission.
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