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What do I have to do to get Core Data to automatically migrate models?
...re to look.
In my AppDelegate I set-up the NSPersistentStoreCoordinator - and you need to add some options to this to tell it to handle auto-migrate:
NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption,
[...
Android mock location on device?
...ou have to enable mock locations in the development panel in your settings and add
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
to your manifest.
Now you can go in your code and create your own mock location provider and set the location of this provider...
Is there a JavaScript function that can pad a string to get to a determined length?
I am in need of a JavaScript function which can take a value and pad it to a given length (I need spaces, but anything would do). I found this:
...
Quickest way to convert a base 10 number to any base in .NET?
I have and old(ish) C# method I wrote that takes a number and converts it to any base:
12 Answers
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Putting license in each code file? [closed]
...
It's reasonable and sensible to identify which license each source file was released under, because the file might be separated from the rest of the code (reuse - encouraged, in general, by Open Source), and if the file contains no informati...
What is the preferred syntax for defining enums in JavaScript?
...
Since 1.8.5 it's possible to seal and freeze the object, so define the above as:
const DaysEnum = Object.freeze({"monday":1, "tuesday":2, "wednesday":3, ...})
or
const DaysEnum = {"monday":1, "tuesday":2, "wednesday":3, ...}
Object.freeze(DaysEnum)
and voil...
Can you use if/else conditions in CSS?
...class="normal">Text</p>
<p class="active">Text</p>
and in your CSS file:
p.normal {
background-position : 150px 8px;
}
p.active {
background-position : 4px 8px;
}
That's the CSS way to do it.
Then there are CSS preprocessors like Sass. You can use conditionals there...
nginx - nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
...n be caused if you have a nginx configuration that is listening on port 80 and also on port [::]:80.
I had the following in my default sites-available file:
listen 80;
listen [::]:80 default_server;
You can fix this by adding ipv6only=on to the [::]:80 like this:
listen 80;
listen [::]:80 ipv6o...
https URL with token parameter : how secure is it?
...tect the query parameters in transit; however, email itself is not secure, and the email could bounce along any number of servers before getting to its destination.
Also depending on your web server the full URL might get logged in its log files. Depending on how sensitive the data is you might not...
How to send emails from my Android application?
I am developing an application in Android. I don't know how to send an email from the application?
21 Answers
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