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How do I check whether a jQuery element is in the DOM?
...s I was typing my question: Call
$foo.parent()
If $f00 has been removed from the DOM, then $foo.parent().length === 0. Otherwise, its length will be at least 1.
[Edit: This is not entirely correct, because a removed element can still have a parent; for instance, if you remove a <ul>, each...
Why dict.get(key) instead of dict[key]?
...method contains an additional parameter which indicates the missing value. From the documentation
get(key[, default])
Return the value for key if key is in the dictionary, else default. If default is not given, it defaults to None, so that this method never raises a KeyError.
An example ca...
Workflow for statistical analysis and report writing
... in all the data required. Typically this is a short file, reading in data from files, URLs and/or ODBC. Depending on the project at this point I'll either write out the workspace using save() or just keep things in memory for the next step.
clean.R: This is where all the ugly stuff lives - taking ...
Should ol/ul be inside or outside?
...nd of! When a browser gives you back HTML (e.g. in the developer tools, or from .innerHTML), it's being re-generated from the element tree. So, Chrome isn't adjusting the HTML so much as creating a valid tree from the original HTML, then generating new HTML from that tree.
– s4...
Rank items in an array using Python/NumPy, without sorting array twice
... mind the dependency on scipy, you can use scipy.stats.rankdata:
In [22]: from scipy.stats import rankdata
In [23]: a = [4, 2, 7, 1]
In [24]: rankdata(a)
Out[24]: array([ 3., 2., 4., 1.])
In [25]: (rankdata(a) - 1).astype(int)
Out[25]: array([2, 1, 3, 0])
A nice feature of rankdata is that ...
JavaScript global event mechanism
...r handling facility in JavaScript? The use case is catching function calls from flash that are not defined.
10 Answers
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how to change uiviewcontroller title independent of tabbar item title
...e tabBarItem onto the navigation controller instead for it to be picked up from the tab bar controller.
None of the answers posted by others worked for me because my tab bar's view controllers all have navigation controllers at their root - this is a common hierarchy pattern for UITabBarController....
C++11 rvalues and move semantics confusion (return statement)
...e same, and neither is cv-qualified (don't return const types). Stay away from returning with the condition (:?) statement as it can inhibit RVO. Don't wrap the local in some other function that returns a reference to the local. Just return my_local;. Multiple return statements are ok and will ...
Difference between ObservableCollection and BindingList
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An ObservableCollection can be updated from UI exactly like any collection. The true difference is rather straightforward:
ObservableCollection<T> implements INotifyCollectionChanged which provides notification when the collection is changed (you guessed ^^...
Python unittest - opposite of assertRaises?
... @Shay, IMO you should always exclude the test files themselves from the coverage reports (as they almost always run 100% by definition, you would be artificially inflating the reports)
– Original BBQ Sauce
Oct 16 '19 at 10:55
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