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How does JavaScript .prototype work?
...slot as a property on an object, internal to the JavaScript engine, hidden from the code you write. The square brackets around [[Prototype]] are deliberate, and are an ECMAScript specification convention to denote internal slots.
The value pointed at by the [[Prototype]] of an object, is colloquia...
UITableView - change section header color
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Hopefully this method from the UITableViewDelegate protocol will get you started:
Objective-C:
- (UIView *) tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
UIView *headerView = [[[UIView alloc] initWithFrame:CGR...
Is there a foreach in MATLAB? If so, how does it behave if the underlying data changes?
...ector, not column vector. If A is a matrix, each k will be a column vector from that matrix. So, transpose(A') or vectorize (A(:)') if needed.
– yuk
Dec 8 '11 at 17:36
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What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?
...sual practice is to have the Views find their ViewModels by resolving them from a dependency injection (DI) container. This happens automatically when the container is asked to provide (resolve) an instance of the View class. The container injects the ViewModel into the View by calling a constructor...
Sphinx autodoc is not automatic enough
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From Sphinx version 3.1 (June 2020), sphinx.ext.autosummary (finally!) has recursion.
So no need to hard code module names or rely on 3rd party libraries like Sphinx AutoAPI or Sphinx AutoPackageSummary for their automatic pa...
What's the most elegant way to cap a number to a segment? [closed]
... ternary is twice as fast as Math.min/max - and if you remove the overhead from the far more expensive Math.random() call, this simple approach is 10 x faster.
– mindplay.dk
Oct 5 '17 at 8:48
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How to drop rows of Pandas DataFrame whose value in a certain column is NaN
...e missing data, including dropna(), is built into pandas explicitly. Aside from potentially improved performance over doing it manually, these functions also come with a variety of options which may be useful.
In [24]: df = pd.DataFrame(np.random.randn(10,3))
In [25]: df.iloc[::2,0] = np.nan; df....
What's a good way to extend Error in JavaScript?
...be instanceof Error
You could sniff the stack, unshift unwanted elements from it and extract information like fileName and lineNumber, but doing so requires information about the platform JavaScript is currently running upon. Most cases that is unnecessary -- and you can do it in post-mortem if yo...
How is “int* ptr = int()” value initialization not illegal?
The following code (taken from here ):
5 Answers
5
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Convert HTML to NSAttributedString in iOS
...if you can't NSHTMLTextDocumentType with this method if you want to use it from a background thread. Even with ios 7, it won't use TextKit for the HTML rendering. Take a look at the DTCoreText library recommended by Ingve.
– TJez
Nov 12 '13 at 18:27
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