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Xcode Debugger: view value of variable
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Now in the Debug Area look for this buttons and click the one in the middle. You will notice your area is now divided in two.
Now run your application.
When the first Breakpoint is reached during the execution of your program you will see on the left side all your variables available at t...
Any reason not to start using the HTML 5 doctype? [closed]
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Well consider this:
When serving as text/html, all you need a doctype for is to trigger standards mode. Beyond that, the doctype does nothing as far as browsers are concerned.
When serving as text/html, whether you use XHTML markup ...
MongoDB: Is it possible to make a case-insensitive query?
...ance, I have a User table that has a username which is mixed case, but the id is an uppercase copy of the username. This ensures case-sensitive duplication is impossible (having both "Foo" and "foo" will not be allowed), and I can search by id = username.toUpperCase() to get a case-insensitive sear...
Django rest framework nested self-referential objects
...e a serializer as a field on itself, but you can use these methods to override what fields are used by default.
class CategorySerializer(serializers.ModelSerializer):
parentCategory = serializers.PrimaryKeyRelatedField()
class Meta:
model = Category
fields = ('parentCategor...
HTTP status code for update and delete?
...hat should be the HTTP status code is the request sent by the client is valid (DELETE mySite/entity/123) and the entity to delete does not exist.
– Martin
Dec 30 '11 at 21:27
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What's the point of 'const' in the Haskell Prelude?
...o add to hammar's excellent direct answer: humble functions like const and id are really useful as a higher order function for the same reason that they are fundamental in the SKI combinator calculus.
Not that I think haskell's prelude functions were modeled consciously after that formal system or...
LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?
...eld } equals new { y.field } there is a compiler error. Functionally you didn't change anything. Using .Net 4.6.1.
– user2415376
Oct 28 '16 at 13:59
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Custom bullet symbol for elements in that is a regular character, and not an image
...ou want to use some other character in place of the bullet. Again, CSS provides a straightforward solution. Simply add list-style: none; to your rule and force the LIs to display with hanging indents. The rule will look something like this:
ul {
list-style: none;
margin-left: 0;
padding-lef...
How to Implement Custom Table View Section Headers and Footers with Storyboard
...ote that effective iOS 6 we can now use dequeueReusableHeaderFooterViewWithIdentifier instead of dequeueReusableCellWithIdentifier.
So in viewDidLoad, call either registerNib:forHeaderFooterViewReuseIdentifier: or registerClass:forHeaderFooterViewReuseIdentifier:. Then in viewForHeaderInSection, ca...
Get environment variable value in Dockerfile
...y app's configuration is contained within environment variables (loaded inside the app with dotenv ).
6 Answers
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