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How does the Windows Command Interpreter (CMD.EXE) parse scripts?
... <0x0C> and <0xFF>
Consecutive token delimiters are treated as one - there are no empty tokens between token delimiters
There are no token delimiters within a quoted string. The entire quoted string is always treated as part of a single token. A single token may consist of a combination ...
Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previ
...on was that I was doing
return
commit
instead of
commit
return
in one stored procedure.
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Can you break from a Groovy “each” closure?
...e a "find" closure instead of an each and return true when you would have done a break.
This example will abort before processing the whole list:
def a = [1, 2, 3, 4, 5, 6, 7]
a.find {
if (it > 5) return true // break
println it // do the stuff that you wanted to before break
ret...
With Mercurial, how can I “compress” a series of changesets into one before pushing?
...y. Now, I start working on a feature. I work on it, and when I think it's done, I commit the changeset. Testing it a bit more, I find that I could further improve this feature by tweaking something in the code. I make the change and commit. 20 minutes later, I find there's a bug in this new feature,...
What is the difference between gravity and layout_gravity in Android?
...
@Thupten Very good question. I guess one will prevail (I guess the children's layout_gravity) and the other one is only the default for the prevailing one.
– Trilarion
Dec 28 '15 at 9:30
...
How do I check if a string is unicode or ascii?
...on 2.x,
Most people seem to be using an if statement that has two checks. one for str and one for unicode.
If you want to check if you have a 'string-like' object all with one statement though, you can do the following:
isinstance(x, basestring)
...
What is the purpose of the var keyword and when should I use it (or omit it)?
...
It's like shooting oneself with a railgun... Forget to put a 'var' before one's variable, and end up modifying a variable somewhere in the scope chain... Try convincing a Java/C/Python/etc. developer that JavaScript is worthwhile. Ha! C/C++ pit...
Why should I use the keyword “final” on a method parameter in Java?
...other than the object passed by the calling method. In the examples above, one should never write the line arg =. Since humans make mistakes, and programmers are human, let’s ask the compiler to assist us. Mark every parameter/argument variable as 'final' so that the compiler may find and flag any...
Sequelize.js delete query?
...
For anyone using Sequelize version 3 and above, use:
Model.destroy({
where: {
// criteria
}
})
Sequelize Documentation - Sequelize Tutorial
...
How do I add a library project to Android Studio?
...ce Android Studio 1.0 was released (and a lot of versions between v1.0 and one of the firsts from the time of my previous answer) some things has changed.
My description is focused on adding external library project by hand via Gradle files (for better understanding the process). If you want to add...