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Why create “Implicitly Unwrapped Optionals”, since that implies you know there's a value?
Why would you create a "Implicitly Unwrapped Optional" vs creating just a regular variable or constant?
If you know that it can be successfully unwrapped then why create an optional in the first place?
For example, why is this:
...
Mac OSX Lion DNS lookup order [closed]
...127.0.0.1 mydomain.com
entry in your hosts file.
Interestingly, if you happen to have a local webserver running on 127.0.0.1:80 and your browser receives a response from the webserver (error or otherwise), no AAAA query is issued, as it seems to be satisfied that a TCP connection was at least pos...
How to change package name of Android Project in Eclipse?
...ndroid project created in Eclipse . I want to modify the package name and application of the project. How do I do that in Eclipse?
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View contents of database file in Android Studio
I have been using Android Studio to develop my app since it's was released.
28 Answers
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How to add custom validation to an AngularJS form?
...ther answer suggested, you can simply roll your own validation directive.
app.directive('blacklist', function (){
return {
require: 'ngModel',
link: function(scope, elem, attr, ngModel) {
var blacklist = attr.blacklist.split(',');
//For DOM -> model validatio...
nano error: Error opening terminal: xterm-256color
...this may be one reason why nano may sometimes fail - e. g. if the problem happens at ncurses/terminfo instead.
– shevy
Aug 29 '16 at 21:38
add a comment
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Open application after clicking on Notification
I have a notification in my app with the following code:
11 Answers
11
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config.assets.compile=true in Rails production, why not?
The default Rails app installed by rails new has config.assets.compile = false in production.
7 Answers
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django unit tests without a db
...th --settings flag set to your new settings file:
python manage.py test myapp --settings='no_db_settings'
UPDATE: April/2018
Since Django 1.8, the module django.test.simple.DjangoTestSuiteRunner were moved to 'django.test.runner.DiscoverRunner'.
For more info check official doc section about cu...
Copy paste text into iOS simulator
...e simulator is simulating an iOS device, with it's own iOS clipboard which apps running on that device (simulator) use via the iOS pup-up select-all/copy/paste UI items.
Completely separate from that: your mac has it's own clipboard and content. The Simulator program running on your mac provides th...