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What's the difference between a Python “property” and “attribute”?
...gs to see if it has a __get__, __set__, or __delete__ method — if it does, it's a property. If it is a property, instead of just returning the eggs object (as it would for any other attribute) it will call the __get__ method (since we were doing lookup) and return whatever that method returns...
Read binary file as string in Ruby
... tar file and convert it into a string (and vice versa). Is there a way to do this in Ruby? My best attempt was this:
8 Ans...
Iterating C++ vector from the end to the beginning
...one beyond the last element, so you'd have to decrement first, and you are done when you reach begin() — but you still have to do your processing.
vector<my_class>::iterator i = my_vector.end();
while (i != my_vector.begin())
{
--i;
/*do stuff */
}
UPDATE: I was apparently too ...
React JSX: selecting “selected” on selected option
...ry</option>
</select>
For more info, see the React select tag doc.
Also, React automatically understands booleans for this purpose, so you can simply write (note: not recommended)
<option value={option.value} selected={optionsState == option.value}>{option.label}</option>
a...
Deleting Row in SQLite in Android
... Vijay's answer is the correct because this solution allows to do an SQL injection which is a security leak. For instance: use the value of the name argument: name = "TRUE; <any SQL command>;" => 'any SQL command' will be executed. Of course it is not a problem if there is no GU...
Express next function, what is it really for?
Have been trying to find a good description of what the next() method does. In the Express documentation it says that next('route') can be used to jump to that route and skip all routes in between, but sometimes next is called without arguments. Anybody knows of a good tutorial etc that descri...
How do RVM and rbenv actually work?
...with switching versions, but a thriving ecosystem of plugins will help you do everything from installing Ruby to setting up your environment, managing "gemsets" and even automating bundle exec.
I am not quite sure what IRC support has to do with switching Ruby versions, and rbenv is designed to be ...
How do I build a numpy array from a generator?
...
Why numpy.array doesn't do the memory allocation the same way as the builtin array.array, as Cuadue says. What is the tradeof? I ask because there is contiguous allocated memory in both examples. Or not?
– jgomo3
...
Is there an alternative to string.Replace that is case-insensitive?
...ses where the strings are input from outside, one cannot be sure that they do not contain characters which mean something special in regular expressions
– Allanrbo
Jan 7 '11 at 15:21
...
How do I get the Git commit count?
...ouped by committer, not so good. Can count lines in git shortlog, but this doesn't work over ssh without a terminal for some reason (pager?). The asker's original solution is the best! git log --pretty=format:'' | wc -l
– Sam Watkins
Feb 4 '12 at 7:15
...