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demystify Flask app.secret_key
...he event, discard the cookie, issue a fresh one, redirect to a login page, etc.
>>> if not good_cookie:
... security_log(cookie)
Hash-based Message Authentication Code (HMAC)
The type of signature generated above that requires a secret key to ensure the integrity of some contents is...
How to create an AVD for Android 4.0
...for customizing some AVD feature like camera, network, memory and ram size etc. Just keep default and click Finish.
You AVD is ready, now click on AVD button in Android Studio (same like 1st step). Then you will able to see created AVD in list. Click on Play button on your AVD.
Your AVD wi...
When to use inline function and when not to use it?
...inline functions, inline functions that recurse or not depending on input, etc., makes it impossible to guarantee that every call of an inline function is actually inlined. The degree of cleverness of a compiler cannot be legislated, so one compiler might generate 720, another 6 * fac(5), and yet an...
How to store arbitrary data for some HTML tags
...our tags, or do pretty much anything else, data will stay attached, copied etc.
The only problem is that you cannot store non-serializable objects that way, and there might be limits if you put something really huge there.
A second way is to use fake attributes like: <a articleid='5' href="lin...
AtomicInteger lazySet vs. set
... "lazySet" method to the Atomic classes
(AtomicInteger, AtomicReference, etc). This is a niche
method that is sometimes useful when fine-tuning code using
non-blocking data structures. The semantics are
that the write is guaranteed not to be re-ordered with any
previous write, but may be r...
How to get a random number in Ruby
... @banister: wow, I was convinced that the new api (rand with range, bytes, etc...) was available directly through the Random object. rand with range will be in 1.9.3, and I'll make a feature request for bytes. I've edited my answer
– Marc-André Lafortune
Jun 2...
Capture Image from Camera and Display in Activity
...dInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.imageView = (ImageView)this.findViewById(R.id.imageView1);
Button photoButton = (Button) this.findViewById(R.id.button1);
photoButton.setOnClickListener(new View.OnCl...
How to count certain elements in array?
...Say hello to your friends: map and filter and reduce and forEach and every etc.
(I only occasionally write for-loops in javascript, because of block-level scoping is missing, so you have to use a function as the body of the loop anyway if you need to capture or clone your iteration index or value. ...
Create a menu Bar in WPF?
... comprehensive tutorial on WPF Menus, Command Binding adding Shortcut keys etc at youtu.be/bdmVWGjpA_8
– Zaheer
Apr 26 at 1:18
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Alternatives to gprof [closed]
...Beside time metric, you can also query specific counters, i.e. cache hits, etc.
Unlike gprof, you can profile any process/binary running on your system using either of the two.
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