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How can I time a code segment for testing performance with Pythons timeit?
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update: time.clock() is now deprecated. You should now use time.time(). Actually, since version 3.3, the best option would be time.perf_counter()
– Madlozoz
Jul 10 '16 at 9:57
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How to display unique records from a has_many through relationship?
...through => :orders, :uniq => true is deprecated. Instead, you should now write has_many :products, -> { distinct }, through: :orders. See the distinct section for has_many: :through relationships on the ActiveRecord Associations documentation for more information. Thanks to Kurt Mueller fo...
How to pass the values from one activity to previous activity
.... Shared Preferences
Suppose you want to store username. So there will be now two thing a Key Username, Value Value.
How to store
// Create object of SharedPreferences.
SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
//now get Editor
SharedPreferences.Edito...
Creation timestamp and last update timestamp with Hibernate and MySQL
... thanks bro such a small thing need to update timestamp. I didnt know. you saved my day.
– Virendra Sagar
Jan 27 '17 at 14:28
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Does setting Java objects to null do anything anymore?
...ue. Basically, because you've preallocated an array, the VM sees that. It knows nothing about the "logical" size of your container. Say you have an ArrayList of size 10, backed by a 16-element array. The VM can't know that items 10..15 aren't actually used; if those slots have contents, they will no...
What is the purpose of willSet and didSet in Swift?
...ldVC!.view.setTranslatesAutoresizingMaskIntoConstraints(false) //For now - until I add my own constraints
self.view.addSubview(_childVC!.view)
let views = ["view" : _childVC!.view] as NSMutableDictionary
let layoutOpts = NSLayoutFormatOptions(0)
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Understanding ibeacon distancing
...ssi) over the calibrated transmitter power (txPower). The txPower is the known measured signal strength in rssi at 1 meter away. Each beacon must be calibrated with this txPower value to allow accurate distance estimates.
While the distance estimates are useful, they are not perfect, and require ...
Streaming via RTSP or RTP in HTML5
... the first method in chrome and got GET rtp://239.255.0.1:6970 net::ERR_UNKNOWN_URL_SCHEME. It seems that only HTTP[S] schemes are allowed on video elements.
– Yan Foto
Jul 21 '15 at 10:10
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No tests found with test runner 'JUnit 4'
My Java test worked well from Eclipse. But now, when I relaunch test from the run menu, I get the following message:
41 An...
What is __main__.py?
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@brk: That doesn't seem to be the case now. I just tried python3 program_dir and it ran __init__.py.
– mk12
Jan 3 '19 at 2:09
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