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Create empty queryset by default in django form fields
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What if I don't have a model, I'm just doing a values_list('something', flat=True)?
– Boris
Mar 17 at 19:41
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How comment a JSP expression?
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Pure JSP comments look like this:
<%-- Comment --%>
So if you want to retain the "=".you could do something like:
<%--= map.size() --%>
The key thing is that <%= defines the beginning of an expression, in which you can't leave the body empty, but you could do somethin...
Scroll to bottom of div?
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This is much easier if you're using jQuery scrollTop:
$("#mydiv").scrollTop($("#mydiv")[0].scrollHeight);
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Force TextBlock to wrap in WPF ListBox
...The problem might not be located in the ListBox. The TextBlock won't wrap, if one of the parent controls provides enough space, so that it hasn't the need to wrap. This might be caused by a ScrollViewer control.
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Retrieving the text of the selected in element
...edText(elementId) {
var elt = document.getElementById(elementId);
if (elt.selectedIndex == -1)
return null;
return elt.options[elt.selectedIndex].text;
}
var text = getSelectedText('test');
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What is better, curl or wget? [closed]
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If you are programming, you should use curl. It has a nice api and is available for most languages. Shelling out to the os to run wget is a kludge and shouldn't be done if you have an API interface!
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How do I find the absolute position of an element using jQuery?
... This does not always seem to return the absolute position due to differences in borders etc.
– Tom
Jul 5 '11 at 12:07
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Converting an array to a function arguments list [duplicate]
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This doesn't work if you want to call a function within an object – e.g. the following doesn't work: window.document.execCommand.apply(window,["insertHorizontalRule",false])
– adib
Oct 3 '15 at 8:10
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How to iterate over a TreeMap? [duplicate]
...is the preferred way to iterate through any Map since EntrySets are by specification reflective and always represent the state of data in the Map even if the Map underneath would change.
– Esko
Aug 23 '09 at 16:58
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Compare two folders which has many files inside contents
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To get summary of new/missing files, and which files differ:
diff -arq folder1 folder2
a treats all files as text, r recursively searched subdirectories, q reports 'briefly', only when files differ
sh...