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Storyboard - refer to ViewController in AppDelegate
...ller into the project and specify the name of the new class in the IB identity inspector. Now how am I going to refer to this ViewController programmatically from the AppDelegate? I've made a variable with the relevant class and turned it into an IBOutlet property, but I don't see any way of being a...
How to check if a string contains an element from a list in Python
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Use a generator together with any, which short-circuits on the first True:
if any(ext in url_string for ext in extensionsToCheck):
print(url_string)
EDIT: I see this answer has been accepted by OP. Though my solution may be "good enough" soluti...
How to escape the % (percent) sign in C's printf?
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You can escape it by posting a double '%' like this: %%
Using your example:
printf("hello%%");
Escaping '%' sign is only for printf. If you do:
char a[5];
strcpy(a, "%%");
printf("This is a's value: %s\n", a);
It will print: This is ...
Check if character is number?
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You could use comparison operators to see if it is in the range of digit characters:
var c = justPrices[i].substr(commapos+2,1);
if (c >= '0' && c <= '9') {
// it is a number
} else {
// it isn't
}
...
Which exception should I raise on bad/illegal argument combinations in Python?
...ndicating invalid argument combinations in Python. I've come across a few situations where you have a function like so:
7 A...
File Upload in WebView
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This is a full solution for all android versions, I had a hard time with this too.
public class MyWb extends Activity {
/** Called when the activity is first created. */
WebView web;
ProgressBar progressBar;
private ValueCallback<Uri> mUploadMessage;
private final static int FILECH...
redirect COPY of stdout to log file from within bash script itself
...named pipe ( >() ) running "tee"
exec > >(tee -i logfile.txt)
# Without this, only stdout would be captured - i.e. your
# log file would not contain any error messages.
# SEE (and upvote) the answer by Adam Spiers, which keeps STDERR
# as a separate stream - I did not want to steal from hi...
Trigger 404 in Spring-MVC controller?
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Since Spring 3.0 you also can throw an Exception declared with @ResponseStatus annotation:
@ResponseStatus(value = HttpStatus.NOT_FOUND)
public class ResourceNotFoundException extends RuntimeException {
...
}
@Controller
public class SomeController {
@RequestMapping.....
...
How can I extract a predetermined range of lines from a text file on Unix?
...rtain section of this file (i.e. the data for a single database) and place it in a new file. I know both the start and end line numbers of the data that I want.
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How to submit a form with JavaScript by clicking a link?
Instead of a submit button I have a link:
8 Answers
8
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