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In Django, how do I check if a user is in a certain group?
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then user.groups.all() returns [<Group: Editor>].
Alternatively, and more directly, you can check if a a user is in a group by:
if django_user.groups.filter(name = groupname).exists():
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Note that groupname can also be the actual Django Group object.
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Java: notify() vs. notifyAll() all over again
If one Googles for "difference between notify() and notifyAll() " then a lot of explanations will pop up (leaving apart the javadoc paragraphs). It all boils down to the number of waiting threads being waken up: one in notify() and all in notifyAll() .
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Is it better to call ToList() or ToArray() in LINQ queries?
...lare it. This is usually because I need to iterate over it multiple times and it is expensive to compute. For example:
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ruby 1.9: invalid byte sequence in UTF-8
... writing a crawler in Ruby (1.9) that consumes lots of HTML from a lot of random sites.
When trying to extract links, I decided to just use .scan(/href="(.*?)"/i) instead of nokogiri/hpricot (major speedup). The problem is that I now receive a lot of " invalid byte sequence in UTF-8 " errors.
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CKEditor automatically strips classes from div
...t sees fit whenever I press the source button. For example if I hit source and create a <div> ...
13 Answers
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How to print a stack trace in Node.js?
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console.log(err.stack) and console.trace() do not give you same results. Whereas err.stack gives you the stack trace for the err object itself (functioning the way we all normally think of exceptions), console.trace() will print out the call stack ...
How can I get every nth item from a List?
I'm using .NET 3.5 and would like to be able to obtain every * n *th item from a List. I'm not bothered as to whether it's achieved using a lambda expression or LINQ.
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try {} without catch {} possible in JavaScript?
...urn something or throw an error. In a main function, I call each of these, and would like to return the value returned by each function, or go on to the second function if the first functions throws an error.
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jQuery convert line breaks to br (nl2br equivalent)
I'm having jQuery take some textarea content and insert it into an li.
9 Answers
9
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How to get browser width using JavaScript code?
...elevant portion is found on line 37 of dimensions.js. Here it is extracted and modified to work standalone:
function getWidth() {
return Math.max(
document.body.scrollWidth,
document.documentElement.scrollWidth,
document.body.offsetWidth,
document.documentElement.offsetWi...