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How to check if a given directory exists in Ruby
...This will return true only if the file exists and is a directory.
As an aside, a more idiomatic way to write the method would be to take advantage of the fact that Ruby automatically returns the result of the last expression inside the method. Thus, you could write it like this:
def directory_exis...
How to impose maxlength on textArea in HTML using JavaScript
...ed. It's easy to figure out with some debug code on the client and server sides.
– Pointy
Apr 30 '10 at 20:35
7
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Angularjs Template Default Value if Binding Null / Undefined (With Filter)
...
Turns out all I needed to do was wrap the left-hand side of the expression in soft brackets:
<span class="gallery-date">{{(gallery.date | date:'mediumDate') || "Various"}}</span>
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How to get the list of all printers in computer
...rious systems (hardware) running on a Windows Operating System.
private void GetAllPrinterList()
{
ManagementScope objScope = new ManagementScope(ManagementPath.DefaultPath); //For the local Access
objScope.Connect();
SelectQuery selectQuery = new Select...
Find and replace string values in list
...Aug 27 '19 at 12:55
Teymour Aldridge
1,12966 silver badges2020 bronze badges
answered Jun 28 '10 at 22:47
sber...
How to use WPF Background Worker
...pleted += worker_RunWorkerCompleted;
Implement two methods:
private void worker_DoWork(object sender, DoWorkEventArgs e)
{
// run all background tasks here
}
private void worker_RunWorkerCompleted(object sender,
RunWorkerCompletedEventArgs e)
{
/...
ruby system command check exit code
... An error status is available in $?.
system("VBoxManage createvm --invalid-option")
$? #=> #<Process::Status: pid 9926 exit 2>
$?.exitstatus #=> 2
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How to do a join in linq to sql with method syntax?
... edited May 20 '14 at 9:58
David
13.7k2626 gold badges9595 silver badges148148 bronze badges
answered Jul 10 '10 at 3:20
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Crontab Day of the Week syntax
...e Tuesday
3 - Wed Wednesday
4 - Thu Thursday
5 - Fri Friday
6 - Sat Saturday
7 - Sun Sunday
Graphically:
┌────────── minute (0 - 59)
│ ┌──────── hour (0 - 23)
│ │ ┌────── day of month (1 - 31)
│ │ ...
displayname attribute vs display attribute
... an example in MVC 2, you had to subclass the DisplayName attribute to provide resource via localization. Display attribute (new in MVC3 and .NET4) supports ResourceType overload as an "out of the box" property.
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