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Entity Framework 4 Single() vs First() vs FirstOrDefault()
...some performance details, especially in the second case you can look here:
https://msdn.microsoft.com/en-us/data/hh949853.aspx?f=255&MSPPError=-2147217396#3
In addition, in the first group you can define complex queries, but with Find() method you can provide only entity key for search.
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Typical AngularJS workflow and project structure (with Python Flask)
... AngularJS and a simple Flask API. Here it is if you want to check it out: https://github.com/rxl/angular-flask
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How to detect the currently pressed key?
...ut doesn't seem to exist). Then I found some sample code which works fine:
http://www.switchonthecode.com/tutorials/winforms-accessing-mouse-and-keyboard-state
In case the page disappears in the future I am posting the relevant source code below:
using System;
using System.Windows.Forms;
using Sys...
Creating Unicode character from its number
...ry code points also, this is what needs to be done:
// this character:
// http://www.isthisthingon.org/unicode/index.php?page=1F&subpage=4&glyph=1F495
// using code points here, not U+n notation
// for equivalence with U+n, below would be 0xnnnn
int codePoint = 128149;
// converting to char...
how to listen to N channels? (dynamic select statement)
... value.String()
You can experiment with a more fleshed out example here: http://play.golang.org/p/8zwvSk4kjx
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Dictionaries and default values
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For multiple different defaults try this:
connectionDetails = { "host": "www.example.com" }
defaults = { "host": "127.0.0.1", "port": 8080 }
completeDetails = {}
completeDetails.update(defaults)
completeDetails.update(connectionDetails)
completeDetails["host"] # ==> "www.example.com"
complete...
Remove grid, background color, and top and right borders from ggplot2
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I followed Andrew's answer, but I also had to follow https://stackoverflow.com/a/35833548 and set the x and y axes separately due to a bug in my version of ggplot (v2.1.0).
Instead of
theme(axis.line = element_line(color = 'black'))
I used
theme(axis.line.x = element_li...
UnicodeEncodeError: 'charmap' codec can't encode - character maps to , print function [du
...Reset the output encoding globally at the begin of the software:
The page http://www.macfreek.nl/memory/Encoding_of_Python_stdout has a good summary what to do to change output encoding. Especially the section "StreamWriter Wrapper around Stdout" is interesting. Essentially it says to change the I/...
Proper use of 'yield return'
... C# by reading a presentation on generators in Python: David M. Beazley's http://www.dabeaz.com/generators/Generators.pdf. You don't need to know much Python to understand the presentation - I didn't. I found it very helpful in explaining not just how generators work but why you should care.
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How to fully delete a git repository created with init?
.../hide files on macOS (in Finder): cmd + shift + . This was a top result on Google for me so people will probably find it a lot even though it's old.
– ludvigeriksson
May 8 '17 at 12:54
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