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How to detect the end of loading of UITableView
...tion was getting called. What I want is to load more data when user scroll down to last row
– Muhammad Nayab
Dec 12 '18 at 7:09
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How to bring back “Browser mode” in IE11?
...kes you to the modern.ie website. The point of this is to encourage you to download the VMs that MS are supplying for us to test our sites using real copies of each version of IE. This will give you a much more accurate testing experience, and is strongly enouraged as a much better practice than tes...
What is the string length of a GUID?
...ytes in length.
If you must store it as a string, the length really comes down to how you choose to encode it. As hex (AKA base-16 encoding) without hyphens it would be 32 characters (two hex digits per byte), so char(32).
However, you might want to store the hyphens. If you are short on space, bu...
Is it possible to forward-declare a function in Python?
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Great tip; really helps me; as I much more prefer "top-down" programming versus bottom up.
– GhostCat
Aug 13 '15 at 11:43
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Always pass weak reference of self into block in ARC?
...sly maintaining a strong reference. You can often use Instruments to track down where objects are getting their strong references, e.g.:
Or in Xcode 5:
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Load and execution sequence of a web page?
...;
roughly the execution flow is about as follows:
The HTML document gets downloaded
The parsing of the HTML document starts
HTML Parsing reaches <script src="jquery.js" ...
jquery.js is downloaded and parsed
HTML parsing reaches <script src="abc.js" ...
abc.js is downloaded, parsed and run
H...
Abusing the algebra of algebraic data types - why does this work?
...nter)
cancelCommand = clicked(cancelButton) + key(Escape)
may be written down more concisely by making the two refinements "clicked" and "key" implicit (like what Scala allows with functions). Hence we can write:
searchCommand = searchButton + Enter
cancelCommand = cancelButton + Escape
The rig...
How to find list of possible words from a letter matrix [Boggle Solver]
...ked this against John Fouhy's solution.) After setup, the time to solve is down in the noise.
grid = "fxie amlo ewbx astu".split()
nrows, ncols = len(grid), len(grid[0])
# A dictionary word that could be a solution must use only the grid's
# letters and have length >= 3. (With a case-insensitiv...
How do I duplicate a whole line in Emacs?
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I use
C-a C-SPACE C-n M-w C-y
which breaks down to
C-a: move cursor to start of line
C-SPACE: begin a selection ("set mark")
C-n: move cursor to next line
M-w: copy region
C-y: paste ("yank")
The aforementioned
C-a C-k C-k C-y C-y
amounts to the same thing (TMT...
How to declare an array in Python?
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I see some down votes for this post time to time. It would be great if someone could post a word why. Thanks.
– Anton
Oct 31 '16 at 12:29
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