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How to format a number 0..9 to display with 2 digits (it's NOT a date)
...arate issue, to do with using the correct default locale of the device the app is running on - you can ignore or fix it, but that's related to Android and locales only. Nothing to do with the actual string formatting
– Radu
Apr 3 '19 at 13:45
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ReactJS - Does render get called any time “setState” is called?
... in component looks like the source of the waterfall of state of the whole APP.
So the change happens from where the setState called. The tree of renders then get called from there. If you've used pure component, the render will be skipped.
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When are you supposed to use escape instead of encodeURI / encodeURIComponent?
...mpatibility. Generally, they should not be used unless interacting with an app/web service/etc designed for them.
– Anthony DiSanti
Jul 12 '11 at 19:03
3
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Reliable method to get machine's MAC address in C#
... get a machine's MAC address regardless of the OS it is running using C#. Application will need to work on XP/Vista/Win7 32 and 64 bit as well as on those OSs but with a foreign language default. Many of the C# commands and OS queries don't work across OS. Any ideas? I have been scraping the out...
How are multi-dimensional arrays formatted in memory?
...ass one to a function taking an int ** parameter, bad things are going to happen. Here's a quick example:
int array1[3][2] = {{0, 1}, {2, 3}, {4, 5}};
In memory looks like this:
0 1 2 3 4 5
exactly the same as:
int array2[6] = { 0, 1, 2, 3, 4, 5 };
But if you try to pass array1 to this fun...
RESTful call in Java
...esource");
Builder request = resource.request();
request.accept(MediaType.APPLICATION_JSON);
Response response = request.get();
if (response.getStatusInfo().getFamily() == Family.SUCCESSFUL) {
System.out.println("Success! " + response.getStatus());
System.out.println(response.getEntity())...
How do I use an INSERT statement's OUTPUT clause to get the identity value?
...e this also from e.g. C#, when you need to get the ID back to your calling app - just execute the SQL query with .ExecuteScalar() (instead of .ExecuteNonQuery()) to read the resulting ID back.
Or if you need to capture the newly inserted ID inside T-SQL (e.g. for later further processing), you need...
How do you downgrade rubygems?
...sues occur, my recommendation is to go onto the production server that the application is currently running in and check out which rubygems version it is using:
gem -v
For me, it was using 1.8.24. So all I needed to do is downgrade my current rubygems which was generated from "rvm install 1.9.3",...
How to check if a user is logged in (how to properly use user.is_authenticated)?
...full Python capabilities, but since the overwhelming majority of 3rd party apps use the Django system it is often hard to intermix them. Look at ExprTag (djangosnippets.org/snippets/9) for a way to get expressions inside of Django templates. It works.
– Peter Rowell
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UIButton title text color
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the documentation of apple states the following : "Do not use the label object to set the text color or the shadow color. Instead, use the setTitleColor:forState: and setTitleShadowColor:forState: methods of this class to make those changes." No...