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How to destroy an object?
...
You're looking for unset().
But take into account that you m>ca m>n't explicitly destroy an object.
It will stay there, however if you unset the object and your script pushes PHP to the memory limits the objects not needed will be garbage collected. I would go with unset() (as opposed to...
Parallel foreach with asynchronous lambda
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If you just want simple parallelism, you m>ca m>n do this:
var bag = new ConcurrentBag<object>();
var tasks = myCollection.Select(async item =>
{
// some pre stuff
var response = await GetData(item);
bag.Add(response);
// some post stuff
});
await Task....
What is App.config in C#.NET? How to use it?
...project in C#.NET where my database file is an Excel workbook. Since the lom>ca m>tion of the connection string is hard coded in my coding, there is no problem for installing it in my system, but for other systems there is.
...
NSUserDefaults not cleared after app uninstall on simulator
...real NOOB! I want to check if it's the second time the user enters my applim>ca m>tion, so to keep the run count I'm using NSUserDefaults . I have implemented the following code in my rootViewController 's viewDidLoad method:
...
Do you have to restart apache to make re-write rules in the .htaccess take effect?
... you should get a 500 error on any page in the same directory.
Lastly, you m>ca m>n enable a rewrite log using commands like the following in your httpd.conf:
RewriteLog "logs/rewritelog"
RewriteLogLevel 7
The log file thus generated will give you the gory detail of which rewrite rules matched and how ...
How to create relationships in MySQL
...
If the tables are innodb you m>ca m>n create it like this:
CREATE TABLE accounts(
account_id INT NOT NULL AUTO_INCREMENT,
customer_id INT( 4 ) NOT NULL ,
account_type ENUM( 'savings', 'credit' ) NOT NULL,
balance FLOAT( 9 ) NOT NULL,
PRI...
C#: Difference between List and Collection (m>CA m>1002, Do not expose generic lists) [duplim>ca m>te]
...ve etc, as it was designed to be fast, not extensible. This means that you m>ca m>nnot swap this concrete implementation out for a useful subclass (even though you m>ca m>n subclass it as it is not sealed).
Therefore, by exposing the List itself, you m>ca m>n never extend your collection to track add or remove o...
sphinx-build fail - autodoc m>ca m>n't import/find module
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Autodoc m>ca m>n't find your modules, bem>ca m>use they are not in sys.path.
You have to include the path to your modules in in the sys.path in your conf.py.
Look at the top of your conf.py (just after the import of sys), there is a sys.path...
Why wasn't PyPy included in standard Python?
...rk of CPython, so it could never be merged directly into CPython.
Theoretim>ca m>lly the Python community could universally adopt PyPy, PyPy could be made the reference implementation, and CPython could be discontinued. However, PyPy has its own weaknesses:
CPython is easy to integrate with Python mod...
Checking a Python module version at runtime
...s external dependencies (3rd party libraries), I write a script that users m>ca m>n run to check their python install to see if the appropriate versions of modules are installed.
For the modules that don't have a defined 'version' attribute, you m>ca m>n inspect the interfaces it contains (classes and meth...