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What is tail recursion?
... of the next recursive call.
The consequence of this is that once you are ready to perform your next recursive step, you don't need the current stack frame any more. This allows for some optimization. In fact, with an appropriately written compiler, you should never have a stack overflow snicker wi...
Tips for a successful AppStore submission? [closed]
In a day or two I'll be ready to submit my iPhone app to the AppStore and I'm curious whether people who have gone through this process have any tips / suggestions for a smooth submission process.
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What's the best way to detect a 'touch screen' device using JavaScript?
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Update: Please read blmstr's answer below before pulling a whole feature detection library into your project. Detecting actual touch support is more complex, and Modernizr only covers a basic use case.
Modernizr is a great, lightweight way...
Update one MySQL table with values from another
...x for joins rather than multiple 'WHERE' conditions, I think its easier to read
As for running slow, how large are the tables? You should have indexes on tobeupdated.value and original.value
EDIT:
we can also simplify the query
UPDATE tobeupdated
INNER JOIN original USING (value)
SET tobeupdated...
How to format Joda-Time DateTime to only mm/dd/yyyy?
... @yaojiang Joda uses the same format string syntax as SimpleDateFormat. Read the API documentation.
– Jesper
Dec 2 '13 at 15:17
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How to ignore certain files in Git
...ly make my point more clear, the index initially (that is, right after git read-tree) "contains" all the files from the tree-ish which had just been read in. Hence making Git "turn a blind eye" to an index entry does not equal actually removing it.
– Xman Classical
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Should __init__() call the parent class's __init__()?
...ing a hair, and moreover there have been nobody to react in 2 years in a thread whose interesting subject must be read relatively often.
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What does the CSS rule “clear: both” do?
...the POOL has no idea how many objects are floating, or what the length or breadth of the floated elements are, so it simply won't stretch.
Normal Flow Of The Document
Sections Floated To Left
Cleared Floated Elements To Stretch Background Color Of The Container
(Refer [Clearfix] section of this ...
git + LaTeX workflow
.... The master branch should be your main body of work, in its most current "ready to publish" state i.e., if of all the branches, if there is one that you are willing to put your name on it, it should be the master branch.
Branches are also extremely helpful if you are a graduate student. As any grad...
Why does !{}[true] evaluate to true in JavaScript?
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@dooxe Read the other answers; it's all about the context in which it is interpreted. If you wrap it in alert() or console.log(), or assign it to a variable, you are changing the context, which is why it doesn't behave the same way ...