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Nested classes' scope?
I'm trying to understand scope in nested classes in Python. Here is my example code:
6 Answers
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How to generate gcc debug symbol outside the build target?
...a .debug extension in a .debug directory. This way I can tar the libraries and executables in one tar file and the .debug directories in another. If I want to add the debug info later on I simply extract the debug tar file and voila I have symbolic debug information.
This is the bash script:
#!/bi...
Can PostgreSQL index array columns?
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Yes you can index an array, but you have to use the array operators and the GIN-index type.
Example:
CREATE TABLE "Test"("Column1" int[]);
INSERT INTO "Test" VALUES ('{10, 15, 20}');
INSERT INTO "Test" VALUES ('{10, 20, 30}');
CREATE INDEX idx_test on "Test" USING GIN ("Col...
Removing duplicate rows from table in Oracle
I'm testing something in Oracle and populated a table with some sample data, but in the process I accidentally loaded duplicate records, so now I can't create a primary key using some of the columns.
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Disable Rails SQL logging in console
Is there a way to disable SQL query logging when I'm executing commands in the console? Ideally, it would be great if I can just disable it and re-enable it with a command in the console.
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Sorting object property by values
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Move them to an array, sort that array, and then use that array for your purposes. Here's a solution:
var maxSpeed = {
car: 300,
bike: 60,
motorbike: 200,
airplane: 1000,
helicopter: 400,
rocket: 8 * 60 * 60
};
var sortable = [];
for (va...
Emacs bulk indent for Python
...by two levels of indention, or some arbitary amount you can prefix the command with an argument:
C-u 8 C-c > shifts the region 8 spaces to the right
C-u 8 C-c < shifts the region 8 spaces to the left
Another alternative is to use M-x indent-rigidly which is bound to C-x TAB:
C-u 8 ...
When NOT to call super() method when overriding?
When I make my own Android custom class, I extend its native class. Then when I want to override the base method, I always call super() method, just like I always do in onCreate , onStop , etc.
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What is the difference between gsub and sub methods for Ruby Strings
I have been perusing the documentation for String today, and I saw the :sub method, which I'd never noticed before. I've been using :gsub and it appears that they are essentially the same. Can anyone explain the difference to me? Thanks!
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What is the difference between the mouseover and mouseenter events?
...ry doc page. It's a nice little, interactive demo that makes it very clear and you can actually see for yourself.
var i = 0;
$("div.overout")
.mouseover(function() {
i += 1;
$(this).find("span").text("mouse over x " + i);
})
.mouseout(function() {
$(this).find("span").t...