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Populate nested array in mongoose
... @TrinhHoangNhu I didn't 4.0 Release Note, but i was tried. My query don't return anything if i run it as mongoose 4.0, but it worked fine when i upgrade to 4.5.8 version. My query: gist.github.com/NgaNguyenDuy/998f7714fb768427abf5838fafa573d7
– NgaNguyenDuy
...
Why is UICollectionViewCell's outlet nil?
... I don't understand why this was down voted. This was the answer to my problem.
– Félix Simões
Jun 24 '15 at 9:17
1
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How to find all combinations of coins when given some dollar value
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I looked into this once a long time ago, and you can read my little write-up on it. Here’s the Mathematica source.
By using generating functions, you can get a closed-form constant-time solution to the problem. Graham, Knuth, and Patashnik’s Concrete Mathematics is the book for...
Is it alright to use target=“_blank” in HTML5?
... site). I often want to jump back and forth between the two without losing my place in the original article. target="_blank" is perfect for this. Leaving the page and having to alternately reload each page (often losing my place in either page), is not. Yes, I know that I can right-click on the lin...
Eclipse “Invalid Project Description” when creating new project from existing source
...d everything like cleaning and restarting, but nothing worked. I looked in my workspace directory, but there are no traces for the old project.
There are several questions around this problem such as this Attempting Android Notepad Tutorial - Exercise 1 - More problems , but none of the answers wor...
Image library for Python 3
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Qt works very well with graphics. In my opinion it is more versatile than PIL.
You get all the features you want for graphics manipulation, but there's also vector graphics and even support for real printers. And all of that in one uniform API, QPainter.
To us...
Cannot read configuration file due to insufficient permissions
I've recently encountered an error trying to host my asp.net site with IIS. I have found a solution that many swear by.
40...
How to detect total available/free disk space on the iPhone/iPad device?
...se check the updated answers below for Swift etc; Since I've not used them myself, I can't vouch for them.
Original answer:
I found the following solution working for me:
-(uint64_t)getFreeDiskspace {
uint64_t totalSpace = 0;
uint64_t totalFreeSpace = 0;
NSError *error = nil;
NSA...
Setup RSpec to test a gem (not Rails)
...nt?
I am not using jeweler or such tools. I just used Bundler ( bundle gem my_gem ) to setup the structure for the new gem and edit the *.gemspec manually.
I also added s.add_development_dependency "rspec", ">= 2.0.0" to gemspec and did a bundle install .
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How do you perform a left outer join using linq extension methods
...ought I would add an alternative to the currently selected answer that (in my experience at least) has been more commonly what I'm after
// Option 1: Expecting either 0 or 1 matches from the "Right"
// table (Bars in this case):
var qry = Foos.GroupJoin(
Bars,
foo => foo.Foo_...