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Reference: What is variable scope, which variables are accessible from where and what are “undefined
What is "variable scope" in PHP? Are variables from one .php file accessible in another? Why do I sometimes get "undefined variable" errors?
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What is the behavior difference between return-path, reply-to and from?
...an email list, that is going to send out the following RFC2822 content.
From: <coolstuff@mymailinglist.com>
To: <you@yourcompany.com>
Subject: Super simple email
Reply-To: <coolstuff-threadId=123@mymailinglist.com>
This is a very simple body.
Now, let's say you are going to ...
Rails: call another controller action from a controller
I need to call the create action in controller A, from controller B.
9 Answers
9
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jQuery: Return data after ajax call success [duplicate]
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The only way to return the data from the function would be to make a synchronous call instead of an asynchronous call, but that would freeze up the browser while it's waiting for the response.
You can pass in a callback function that handles the result:
f...
Python Sets vs Lists
...st(iterable):
... for i in iterable:
... pass
...
>>> from timeit import timeit
>>> timeit(
... "iter_test(iterable)",
... setup="from __main__ import iter_test; iterable = set(range(10000))",
... number=100000)
12.666952133178711
>>> timeit(
... ...
Is it possible to define more than one function per file in MATLAB, and access them from outside tha
...hough the scoping behavior is still the same (i.e. they can only be called from within the script).
In addition, you can also declare functions within other functions. These are called nested functions, and these can only be called from within the function they are nested. They can also have access...
Android image caching
How can I cache images after they are downloaded from web?
18 Answers
18
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How to cache data in a MVC application
...again, because it's re-reading in the cache and it might have been dropped from the cache already. I'd rather do: public string[] GetNames() { string[] noms = Cache["names"]; if(noms == null) { noms = DB.GetNames(); Cache["names"] = noms; } return (noms); }
–...
How to call a parent class function from derived class function?
How do I call the parent function from a derived class using C++? For example, I have a class called parent , and a class called child which is derived from parent. Within
each class there is a print function. In the definition of the child's print function I would like to make a call to the ...
Is it possible to get the iOS 5.1 SDK for Xcode 4.2 on Snow Leopard?
...f you have another Mac running Lion and Xcode 4.3.1 you can copy the files from:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/5.1 (9B176)
Place the copied files in the equivalent place on your Snow Leopard Mac: probably
/Developer/Platforms/iPhoneOS.p...