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How to set a value of a variable inside a template code?
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If you need to declare a list, use make_list. docs.djangoproject.com/en/1.9/ref/templates/builtins/#make-list
– MrValdez
Jul 1 '16 at 7:55
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Download a file with Android, and showing the progress in a ProgressDialog
...Use AsyncTask and show the download progress in a dialog
This method will allow you to execute some background processes and update the UI at the same time (in this case, we'll update a progress bar).
Imports:
import android.os.PowerManager;
import java.io.InputStream;
import java.io.OutputStream...
“Single-page” JS websites and SEO
... the server act as an API (and nothing more) and letting the client handle all of the HTML generation stuff. The problem with this "pattern" is the lack of search engine support. I can think of two solutions:
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What's up with Java's “%n” in printf?
...e that you need \u000A linefeed character, for example in networking.
In all other situations use %n
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Calling a function from a string in C#
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Yes. You can use reflection. Something like this:
Type thisType = this.GetType();
MethodInfo theMethod = thisType.GetMethod(TheCommandString);
theMethod.Invoke(this, userParameters);
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iPhone viewWillAppear not firing
... my navigation controller's delegate and still the method was not getting called. Anyway, I set it and then I used the methods you mention above. Thanks.
– Dimitris
Mar 29 '10 at 12:53
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MySQL: selecting rows where a column is null
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NULL = NULL is not really FALSE - it's NULL again. But it's not TRUE either, so IF(NULL = NULL) won't execute.
– Konerak
Jan 12 '11 at 19:50
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场景自适应（AdaptiveExperience）使用指导 · App Inventor 2 中文网
...个事件积木中。
when Screen1.Initialize() {
AdaptiveExperience1.RefreshScene()
标签1.Text = AdaptiveExperience1.GetSceneJson()
}
案例二：选择响应式文字
when 按钮1.Click() {
标签1.Text = AdaptiveExperience1.BuildResponsiveValue("手机单列", "...
Resize image in the wiki of GitHub using Markdown
I'm writing a wiki page on GitHub, and I'm using Markdown.
6 Answers
6
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Why are arrays covariant but generics are invariant?
...e array, so it should be possible to write a single function that works on all types of arrays. It is easy to implement functions of type
boolean equalArrays (Object[] a1, Object[] a2);
void shuffleArray(Object[] a);
However, if array types were treated as invariant, it would only be possible...