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Getting current unixtimestamp using Moment.js
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Not valid anymore. See @kumar chandraketu answer below.
– kaiser
Feb 16 at 6:19
1
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What are static factory methods?
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We avoid providing direct access to database connections because they're resource intensive. So we use a static factory method getDbConnection that creates a connection if we're below the limit. Otherwise, it tries to provide a "s...
Completion block for popViewController
... view controller using dismissViewController , there is the option to provide a completion block. Is there a similar equivalent for popViewController ?
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Unique constraint that allows empty values in MySQL
...cts simply doesn't have a code. I can't invent codes because those are providers codes.
3 Answers
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RSpec: What is the difference between a feature and a request spec?
... I use both, @robertwbradford. I use feature specs to drive my outside in tests - testing the user experience and then building out the functionality using unit tests. I use request specs for testing responses - e.g. in a sessions_spec I may have a describe "GET /login" block with expectatio...
Django fix Admin plural
...seems like the Meta class approach still works.
So placing a meta class inside your model will still do the trick:
class Category(models.Model):
class Meta:
verbose_name_plural = "categories"
Note that we use the lower case here, as django is smart enough to capitalize it when we need...
Fade/dissolve when changing UIImageView's image
...egate = self;
[self.view.layer addAnimation:transition forKey:nil];
view1.hidden = YES;
view2.hidden = NO;
See the View Transitions example project from Apple: https://developer.apple.com/library/content/samplecode/ViewTransitions/Introduction/Intro.html#//apple_ref/doc/uid/DTS40007411
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Diff two tabs in Vim
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The content of all tabs are inside the buffers.
Look at the buffers:
:buffers
Find the right number for the content which should be diffed with your current tab content.
Open the buffer inside your current tab (f.e. buffer number 4)
:sb 4
Or do for ...
What is the purpose of a plus symbol before a variable?
...34",1,true);
then the +d will evaluate to a number in all cases. Thus avoiding the need to check for the type and take different code paths depending on whether d is a number, a function or a string that can be converted to a number.
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What's the difference setting Embed Interop Types true and false in Visual Studio?
...s (Primary Interop Assemblies) for interop.
It simply embeds the managed bridging code used that allows you to talk to unmanaged assemblies, but instead of embedding it all it only creates the stuff you actually use in code.
Read more in Scott Hanselman's blog post about it and other VS improvements...