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Java's Virtual Machine and CLR
...popping those operands off the stack whenever an instruction (add, divide, etc) needs to consume those operands. Each instruction pushes its results back onto the stack.
It's a convenient way to implement a virtual machine, because pretty much every CPU in the world has a stack, but the number of r...
Can I store images in MySQL [duplicate]
...nces to the images in the database. e.g. path to the image,the image name, etc.. Or alternatively, you may even store images on a content delivery network (CDN) or numerous hosts across some great expanse of physical territory, and store references to access those resources in the database.
Images ...
Shall we always use [unowned self] inside closure in Swift
...t to use [unowned self]. Sometimes you want the closure to capture self in order to make sure that it is still around by the time the closure is called.
Example: Making an asynchronous network request
If you are making an asynchronous network request you do want the closure to retain self for when...
Python circular importing?
... get away with it. But when one of your co-workers innocently changes the order of definitions in a third module, the code will break.
In some cases you can resolve circular dependencies by moving an import statement down below symbol definitions needed by other modules. In the examples above, def...
Git diff to show only lines that have been modified
...onal git diff options such as -R, --src-prefix, --dst-prefix, --no-prefix, etc.
The two greps can be combined into a single grep -E -v '^(\+\+\+ b/|--- a/|@@ |diff --git|index )', but I find the double grep version easier to understand.
...
How do I get the directory that a program is running from?
...uld be considered subject to change from version to version, arch to arch, etc.
– asveikau
Jan 28 '10 at 0:29
4
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WPF Blurry fonts issue- Solutions
...trick nicely. Bit of a hack, but better than messing around with settings etc. Nice one. thanks. One thing I had to do however, was set the fill of the rectangle to something. Maybe this was just my setup though.
– HAdes
Jan 25 '10 at 15:46
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How to get a complete list of ticker symbols from Yahoo Finance? [closed]
... Rogers Communications Inc, it only downloads RCI, not RCI-A.TO, RCI-B.TO, etc. I haven't found a source for that information yet - if anyone knows of a way to automate downloading that, I'd like to hear it. Also, it'd be nice to find a way to download some sort of relation between the stock symbol ...
How to sort an IEnumerable
...
The same way you'd sort any other enumerable:
var result = myEnumerable.OrderBy(s => s);
or
var result = from s in myEnumerable
orderby s
select s;
or (ignoring case)
var result = myEnumerable.OrderBy(s => s,
StringComparer.C...
SQL left join vs multiple tables on FROM line?
... Employee.DepartmentID
Note that the last one there is an inner join, in order to fulfill the criteria that you only want departments with people.
Ok, so what happens now. Well, the problem is, it depends on the database engine, the query optimizer, indexes, and table statistics. Let me explain.
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