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Get a random item from a JavaScript array [duplicate]
...andom() will never be 1, nor should it. The largest index should always be one less than the length, or else you'll get an undefined error.
– Kelly
Sep 16 '13 at 16:06
21
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Python Empty Generator Function
In python, one can easily define an iterator function, by putting the yield keyword in the function's body, such as:
9 Answ...
What is the difference between #include and #include “filename”?
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Those who don't like the answer, please, give one practical example, where it is wrong.
– 0kcats
Nov 8 '17 at 20:46
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How to scroll to the bottom of a UITableView on the iPhone before the view appears
...nswered Mar 14 '13 at 9:12
Hans OneHans One
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Why must wait() always be in synchronized block
...ication between threads, and that needs synchronization to work correctly. One could argue that this should be implicit, but that would not really help, for the following reason:
Semantically, you never just wait(). You need some condition to be satsified, and if it is not, you wait until it is. So...
Access parent DataContext from DataTemplate
... your own naming and don't have heavy reuse of templates/styles across components:
<ItemsControl x:Name="level1Lister" ItemsSource={Binding MyLevel1List}>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button Content={Binding MyLevel2Property}
Command={Bi...
How can I convert a DateTime to the number of seconds since 1970?
...ew DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc); Interesting that no one suggested this. Very often you will have milliseconds representing Utc time. And if you dont specify this explicitly and somewhere later in code youll have ToUniversalTime() than you end up with bad Utc time, because by d...
How do I determine the target architecture of static library (.a) on Mac OS X?
I'm interested in verifying if a given iPhone static library has been built for ARM or Intel.
5 Answers
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Event system in Python
...trying to keep an overview of the above packages, plus the techniques mentioned in the answers here.
First, some terminology...
Observer pattern
The most basic style of event system is the 'bag of handler methods', which is a
simple implementation of the Observer pattern.
Basically, the handler meth...
How to ignore user's time zone and force Date() use specific time zone
...2010 02:06:30 GMT-0700 (PDT)", for me
_date.toLocaleString('fi-FI', { timeZone: 'Europe/Helsinki' });
// outputs > "6.4.2010 klo 12.06.30"
_date.toLocaleString('en-US', { timeZone: 'Europe/Helsinki' });
// outputs > "4/6/2010, 12:06:30 PM"
This works but.... you can't really use any of the o...