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Deep null checking, is there a better way?
...ing a new operation "?." to the language that has the semantics you want. (And it has been added now; see below.) That is, you'd say
cake?.frosting?.berries?.loader
and the compiler would generate all the short-circuiting checks for you.
It didn't make the bar for C# 4. Perhaps for a hypothetic...
Android: combining text & image on a Button or ImageButton
I'm trying to have an image (as the background) on a button and add dynamically, depending on what's happening during run-time, some text above/over the image.
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What is the difference between `new Object()` and object literal notation?
...done something unusual), other than that your second one creates an object and adds a property to it. But literal notation takes less space in the source code. It's clearly recognizable as to what is happening, so using new Object(), you are really just typing more and (in theory, if not optimized ...
Class method differences in Python: bound, unbound and static
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In Python, there is a distinction between bound and unbound methods.
Basically, a call to a member function (like method_one), a bound function
a_test.method_one()
is translated to
Test.method_one(a_test)
i.e. a call to an unbound method. Because of that, a call to...
SQL SELECT speed int vs varchar
I'm in the process of creating a table and it made me wonder.
9 Answers
9
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When to use UICollectionView instead of UITableView?
...ionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath and in UITableViewDelegate:
`-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath`
You get the selected row instead of the item, so for creating grid or modified items, using UICollect...
Seeding the random number generator in Javascript
Is it possible to seed the random number generator (Math.random) in Javascript?
13 Answers
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Seedable JavaScript random number generator
The JavaScript Math.random() function returns a random value between 0 and 1, automatically seeded based on the current time (similar to Java I believe). However, I don't think there's any way to set you own seed for it.
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Eclipse Build Path Nesting Errors
... the webcontent folder he wants all of our source code under src/main/java and src/main/webapp.
13 Answers
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Windows service on Local Computer started and then stopped error
...y, I get this error:
(The "service name" service on Local Computer started and then stopped. Some services stop automatically if they are not in use by other service or programs) when there's something wrong with my code, like non-existing drive paths, etc. The windows service will not start.
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