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Create a folder if it doesn't already exist
...ou need to pass 'recursive' flag as third argument (boolean true) in mkdir call like this:
mkdir('path/to/directory', 0755, true);
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Adding Core Data to existing iPhone project
... can be found in the Supporting Files group in the Project navigator. It's called 'projectname-Prefix.pch' by default.
Xcode 6+
Starting with Xcode 6, the precompiled header file is no longer included by default. This is because of the introduction of Modules, which take away the need to use preco...
machine learning libraries in C# [closed]
...github.com/dotnet/machinelearning
OLD
There's a neural network library called AForge.net on the codeproject. (Code hosted at Google code) (Also checkout the AForge homepage - According to the homepage, the new version now supports genetic algorithms and machine learning as well. It looks like it...
Python 3: UnboundLocalError: local variable referenced before assignment [duplicate]
...ttom line). Naturally, this creates a variable inside the function's scope called Var1 (truthfully, a -= or += will only update (reassign) an existing variable, but for reasons unknown (likely consistency in this context), Python treats it as an assignment). The Python interpreter sees this at modul...
How to clone a Date object?
... new Date(date) same as new Date(date.getTime()), because JS will try to call date.valueOf() when it need a number, and date.valueOf() is same as date.getTime(), reference Date.valueOf Object.valueOf
– Steely Wing
Sep 27 '13 at 7:41
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How can I connect to MySQL in Python 3 on Windows?
...ster than mysql-connector
Almost completely compatible with MySQLdb, after calling pymysql.install_as_MySQLdb()
https://pypi.python.org/pypi/cymysql
fork of pymysql with optional C speedups
https://pypi.python.org/pypi/mysqlclient
Django's recommended library.
Friendly fork of the original M...
How to load local html file into UIWebView
...ile into my UIWebView but it won't work. Here's the stage: I have a folder called html_files in my project. Then I created a webView in interface builder and assigned an outlet to it in the viewController. This is the code I'm using to append the html file:
...
Can I get the name of the currently running function in JavaScript?
...at information.
In older versions of JS you can get it by using arguments.callee.
You may have to parse out the name though, as it will probably include some extra junk. Though, in some implementations you can simply get the name using arguments.callee.name.
Parsing:
function DisplayMyName()
{...
What is the difference between return and return()?
...ust superfluous.
return is not a function, but a statement. It is syntactically similar to other simple control flow statements like break and continue that don't use parentheses either.
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Is there a way to instantiate a class by name in Java?
...nstructors is to query your class object to get its Constructor object and call a newInstance() method on this object:
Class<?> clazz = Class.forName("com.foo.MyClass");
Constructor<?> constructor = clazz.getConstructor(String.class, Integer.class);
Object instance = constructor.newInst...