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Convert base-2 binary number string to int
...bda x,y : x + y
reduce(add, [int(x) * 2 ** y for x, y in zip(list(binstr), range(len(binstr) - 1, -1, -1))])
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How do you print out a stack trace to the console/log in Cocoa?
...he stack trace on uncaught exceptions to the console although they're just raw memory addresses. If you want symbolic information in the console there's some sample code from Apple.
If you want to generate a stack trace at an arbitrary point in your code (and you're on Leopard), see the backtrace m...
Getting View's coordinates relative to the root layout
... offsetViewBounds = new Rect();
//returns the visible bounds
childView.getDrawingRect(offsetViewBounds);
// calculates the relative coordinates to the parent
parentViewGroup.offsetDescendantRectToMyCoords(childView, offsetViewBounds);
int relativeTop = offsetViewBounds.top;
int relativeLeft = offs...
How to set the id attribute of a HTML element dynamically with angularjs (1.x)?
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The ng-attr-id method is to ensure that the raw ng expression is never rendered in a valid HTML attribute (e.g. id, label, etc). This is to stop any downstream usage reading ng 'junk' (e.g. before render is complete, or after a js crash)
– Overfle...
Quickest way to convert a base 10 number to any base in .NET?
...-Z)
string hexavigesimal = IntToString(42,
Enumerable.Range('A', 26).Select(x => (char)x).ToArray());
// convert to sexagesimal
string xx = IntToString(42,
new char[] { '0','1','2','3','4','5','6','7','8','9',
'A','B','C','D','E','F',...
Using R to download zipped data file, extract, and import data
...a .z archive? I can read from a url connection with readBin(url(x, "rb"), 'raw', 99999999), but how would I extract the contained data? The uncompress package has been removed from CRAN - is this possible in base R (and if so, is it restricted to *nix systems?)? Happy to post as a new question if ap...
PHP - how to create a newline character?
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The "echo" command in PHP sends the output to the browser as raw html so even if in double quotes the browser will not parse it into two lines because a newline character in HTML means nothing. That's why you need to either use:
echo [output text]."<br>";
when using "echo", o...
how to return index of a sorted list? [duplicate]
...index array instead.
>>> s = [2, 3, 1, 4, 5]
>>> sorted(range(len(s)), key=lambda k: s[k])
[2, 0, 1, 3, 4]
>>>
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StringLength vs MaxLength attributes ASP.NET MVC with Entity Framework EF Code First
...t to note down is in MaxLength attribute you can only provide max required range not a min required range.
While in StringLength you can provide both.
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Java equivalent of unsigned long long?
...g(objScannerInstance.next("\\d+")); Not exactly elegant because it lacks a range check, but it would let you pull in long numeric inputs that would otherwise possible exceed the range of a signed long. (Leverages the fact that Scanner::next(...) can also accept either a Pattern object or String patt...