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What's the difference between Perl's backticks, system, and exec?
... the output of the command. In scalar context, it returns them as a single string joined with newlines.
– felwithe
Jul 21 at 16:19
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How do I correctly clean up a Python object?
...it close() statement is that you have to worry about people forgetting to call it at all or forgetting to place it in a finally block to prevent a resource leak when an exception occurs.
To use the with statement, create a class with the following methods:
def __enter__(self)
def __exit__(self...
How to convert Linux cron jobs to “the Amazon way”?
...ntab. There is a case study at the end that helped me understand what that extra complexity buys you. I would suggest watching the case study and considering your requirements for scalability and fault tolerance to decide whether you should migrate from your existing crontab solution.
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jQuery validate: How to add a rule for regular expression validation?
... defined outside the method as a literal, instead of the invocation from a string..
– Tracker1
Jul 5 '10 at 23:30
3
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Getting the folder name from a path
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I would probably use something like:
string path = "C:/folder1/folder2/file.txt";
string lastFolderName = Path.GetFileName( Path.GetDirectoryName( path ) );
The inner call to GetDirectoryName will return the full path, while the outer call to GetFileName() wil...
How to return a result from a VBA function
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Actually you answered the question more clearly with extra information (which could potentialy lead to another question from new to VBA guy). Keep up the good work
– Adarsha
May 6 '10 at 14:39
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Does Python have “private” variables in classes?
...ass variables. In Java, nothing prevents you from doing the same if you really want to - after all, you can always edit the source of the class itself to achieve the same effect. Python drops that pretence of security and encourages programmers to be responsible. In practice, this works very nicely...
Changing selection in a select with the Chosen plugin
... I know this is an old post - but a simpler way to update is just in one string: $('select').val(2).trigger("chosen:updated");
– Andrew Newby
Jun 24 '14 at 14:33
10
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How do I invert BooleanToVisibilityConverter?
... }
if (parameter != null)
{
if (bool.Parse((string)parameter))
{
flag = !flag;
}
}
if (flag)
{
return Visibility.Visible;
}
else
{
return Visibility.Collapse...
Convert Json Array to normal Java list
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ArrayList<String> list = new ArrayList<String>();
JSONArray jsonArray = (JSONArray)jsonObject;
if (jsonArray != null) {
int len = jsonArray.length();
for (int i=0;i<len;i++){
list.add(jsonArray.get(i).toSt...