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What is the proper way to check if a string is empty in Perl?
... situation where you haven't already guarded against undef, then the catch-all for "non-empty" that won't warn is if (defined $str and length $str).
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Sending Arguments To Background Worker?
... the Completed handler should follow this pattern
// for Error and (optionally) Cancellation handling
private void worker_Completed(object sender, RunWorkerCompletedEventArgs e)
{
// check error, check cancel, then use result
if (e.Error != null)
{
// handle the error
}
else if (e.C...
top nav bar blocking top content of the page
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Perfect. This should really be integrated into bootstrap somehow. You should fork and submit a pull request.
– brittohalloran
Jul 27 '12 at 13:57
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Dismiss keyboard by touching background of UITableView
... behind the UITableView . The only problem is the UIButton is catching all the touches even when the touch is on the UITableView. What am I doing wrong?
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LINQ: “contains” and a Lambda query
I have a List<BuildingStatus> called buildingStatus . I'd like to check whether it contains a status whose char code (returned by GetCharCode() ) equals some variable, v.Status .
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How to prompt for user input and read command-line arguments [closed]
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You don't have to use str() in print concatenation since all entered data will be str(ing) type by default (even numbers).
– Goujon
Nov 8 '17 at 11:50
add a ...
How do I compare strings in Java?
I've been using the == operator in my program to compare all my strings so far.
However, I ran into a bug, changed one of them into .equals() instead, and it fixed the bug.
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Why is the tag deprecated in HTML?
...n property to center. This guarantees that the element will be centered in all modern browsers.
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How do I run a Node.js application as its own process?
.../bin
Environment=NODE_ENV=production
WorkingDirectory=/var/www/myapp
[Install]
WantedBy=multi-user.target
Note if you're new to Unix: /var/www/myapp/app.js should have #!/usr/bin/env node on the very first line.
Copy your service file into the /etc/systemd/system folder.
Tell systemd about the ...
What is JAXB and why would I use it? [closed]
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I'm a big fan of JAXB for manipulating XML. Basically, it provides a solution to this problem (I'm assuming familiarity with XML, Java data structures, and XML Schemas):
Working with XML is difficult. One needs a way to take an XML file - which is basically a text file - a...