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Will strlen be calculated multiple times if used in a loop condition?
...es one particular character in the string at location i each time the loop starts a cycle, thus it will take less memory and is more efficient.
See this Link for more information.
In the code below every time the loop runs strlen will count the length of the whole string which is less efficient, t...
How to store date/time and timestamps in UTC time zone with JPA and Hibernate
... timezone desired when you display stuff (at least we do it this way).
At startup, we do:
TimeZone.setDefault(TimeZone.getTimeZone("Etc/UTC"));
And set the desired timezone to the DateFormat:
fmt.setTimeZone(TimeZone.getTimeZone("Europe/Budapest"))
...
What are naming conventions for MongoDB?
...ecause this defines the end of collection name.
Collection name should not start with the prefix “system.” as this is reserved for internal collections.
It would be good to not contain the character “$” in the collection name as various driver available for database do not support “$” in...
How do I debug error ECONNRESET in Node.js?
...around 5 times during 24h.
The node process is wrapped in forever and it restarts itself immediately.
14 Answers
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Is using 'var' to declare variables optional? [duplicate]
...statement reserves the variable name within the current scope, and it will start out with an undefined value. The assignment of the initial value will only happen exactly where you wrote var .. = ...
– deceze♦
Jan 29 '14 at 13:17
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Prevent HTML5 video from being downloaded (right-click saved)?
...s loaded, the db has the token, the page has the token. Once <video> starts to load (Accesses the endpoint), server checks if token is in the db, deletes it and streams the file. If the token isn't there as a result of second access, then don't stream the file.
– Joseph
...
Why is quicksort better than mergesort?
... use some variation on mergesort. (Generally you quicksort sublists, then start merging them together above some size threshold.)
Furthermore if you have to do anything with datasets of that size, think hard about how to avoid seeks to disk. For instance this is why it is standard advice that you...
Difference between Service, Async Task & Thread?
...fecycle hook and when you rotate the phone the Activity is destroyed and restarted. The previus instance of the AsyncTask is connected to that Activity that you just destroyed and for that reason you will get a "Force Close" but you will also see how a new instance of the AsynTask getting trigger ag...
How to concatenate text from multiple rows into a single text string in SQL server?
...NULL, the NULL will make @Names NULL after that row, and the next row will start over as an empty string again. Easily fixed with one of two solutions:
DECLARE @Names VARCHAR(8000)
SELECT @Names = COALESCE(@Names + ', ', '') + Name
FROM People
WHERE Name IS NOT NULL
or:
DECLARE @Names VARCHAR...
Scrolling down both parts of a split-window at the same time in Vim
...
the problem is that all the lines differ, it's starting to be a mess.. The lines are nearly the same but may differ by one character...and I don't want my view to be too much disturbed..thanks though.
– LB40
Jul 7 '09 at 14:48
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