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What is the best regular expression to check if a string is a valid URL?
...nalized) pattern to comply with RFC 3987 (http://www.faqs.org/rfcs/rfc3987.html). These are in PCRE syntax.
For absolute IRIs (internationalized):
/^[a-z](?:[-a-z0-9\+\.])*:(?:\/\/(?:(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{A0}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFEF}\x{10000}-\x{1FFFD}\x{20000}-\x{2...
How can I count the number of matches for a regex?
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matcher.find() does not find all matches, only the next match.
Solution for Java 9+
long matches = matcher.results().count();
Solution for Java 8 and older
You'll have to do the following. (Starting from Java 9, there is...
Declaring a default constraint when creating a table
I am creating a new table in Microsoft SQL server 2000 by writing the code instead of using the GUI, I am trying to learn how to do it "the manual way".
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How do I insert a linebreak where the cursor is without entering into insert mode in Vim?
Is possible to insert a line break where the cursor is in Vim without entering into insert mode? Here's an example ( [x] means cursor is on x ):
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How to add new line into txt file
I'd like to add new line with text to my date.txt file, but instead of adding it into existing date.txt, app is creating new date.txt file..
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how to iterate through dictionary in a dictionary in django template?
...ate & render in django template.
return render_to_response('some_page.html', {'data': sorted(data.items())})
In template file:
{% for key, value in data %}
<tr>
<td> Key: {{ key }} </td>
<td> Value: {{ value }} </td>
</tr>
{% endfor...
ImportError: No module named requests
Whenever I try to import requests , I get an error saying No module Named requests .
31 Answers
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How to save a git commit message from windows cmd?
I run git from the command line.
6 Answers
6
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Get to UIViewController from UIView?
Is there a built-in way to get from a UIView to its UIViewController ? I know you can get from UIViewController to its UIView via [self view] but I was wondering if there is a reverse reference?
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How to get a value of an element by name instead of ID
...nameOfElement']").val();
We can also use other attributes to get values
HTML
<input type="text" id="demoText" demo="textValue" />
JS
$("[demo='textValue']").val();
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