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What is the Ruby (spaceship) operator?
...en return 1
if a and b are not comparable then return nil
It's useful for sorting an array.
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What is Model in ModelAndView from Spring MVC?
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The model presents a placeholder to hold the information you want to display on the view. It could be a string, which is in your above example, or it could be an object containing bunch of properties.
Example 1
If you have...
return new ModelAndView("welcomePage","Welc...
Keep the window's name fixed in tmux
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For people using byobu, you should actually change ~/.byobu/.tmux.conf.
– ostrokach
Apr 20 '18 at 21:06
2...
Require returns an empty object
...y filled object - however many things were set on the exports in book.js before it required author.js will be in that object
After book.js is completely run through, the object author.js got from require('./book') will be the full book.js module object
For more info, here's the docs: http://nodejs...
Python: using a recursive algorithm as a generator
... problem came with a natural recursive solution. Now it happens that, even for relatively small input, the sequences are several thousands, thus I would prefer to use my algorithm as a generator instead of using it to fill a list with all the sequences.
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Comments in .gitignore?
...it-Basics-Recording-Changes-to-the-Repository#Ignoring-Files
The rules for the patterns you can put in the .gitignore file are as follows:
- Blank lines or lines starting with # are ignored.
[…]
The comment character is #, example:
# no .a files
*.a
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How to check if a user is logged in (how to properly use user.is_authenticated)?
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Update for Django 1.10+:
is_authenticated is now an attribute in Django 1.10.
The method was removed in Django 2.0.
For Django 1.9 and older:
is_authenticated is a function. You should call it like
if request.user.is_authenticated()...
presentModalViewController:Animated is deprecated in ios6
I am using the following code for an image picker. But when I run it in the simulator, I have a memory leak and I get a warning about presentModalViewcontroller:animated being deprecated in iOS6. I also get dismissModalViewController:animated deprecated. I'm using the SDK 6.1.
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Convert HttpPostedFileBase to byte[]
... The important part is that you read from HttpPostedFileBase.InputStream.
For efficient purposes you could check whether the stream returned is already a MemoryStream:
byte[] data;
using (Stream inputStream = model.File.InputStream)
{
MemoryStream memoryStream = inputStream as MemoryStream;
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Disable Visual Studio devenv solution save dialog
...tibility
Set "Run this program as an administrator".
I also did the same for C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\devenv.exe.
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