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Why is processing a sorted array slower than an unsorted array?
...cy. A memory access can stall the CPU for 50-200 cycles. Given that number one could expect the program to become >10x slower when introducing random memory accesses.
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Skip the headers when editing a csv file using Python
...is an iterable, by looping over it you retrieve the rows.
To make it skip one item before your loop, simply call next(reader, None) and ignore the return value.
You can also simplify your code a little; use the opened files as context managers to have them closed automatically:
with open("tmob_no...
Add to Array jQuery
I know how to initliaize one but how do add I items to an Array? I heard it was push() maybe? I can't find it...
4 Answer...
I just discovered why all ASP.Net websites are slow, and I am trying to work out what to do about it
...tirely, for that page.
<% @Page EnableSessionState="False" %>
If none of your pages use session variables, just turn off session state in the web.config.
<sessionState mode="Off" />
I'm curious, what do you think "a ThreadSafe collection" would do to become thread-safe, if it doesn...
Get the subdomain from a URL
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Anyone have any great ideas besides
storing a list of all TLDs?
No, because each TLD differs on what counts as a subdomain, second level domain, etc.
Keep in mind that there are top level domains, second level domains, and ...
Clicking the back button twice to exit an activity
...solution/answer but I don't agree that it's the best solution. And for the ones who think this will be best answer again I can't agree. These solution causes leaks and will require extra effort for handling. Check the aswers below for further details.
– Saro Taşciyan
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Re-entrant locks in C#
...u're pretty much guaranteed to get deadlock issues at some point.
Here is one good webpage describing thread synchronisation in .NET: http://dotnetdebug.net/2005/07/20/monitor-class-avoiding-deadlocks/
Also, lock on as few objects at a time as possible. Consider applying coarse-grained locks where...
Pointer to class data member “::*”
...other level of indirection that can solve some tricky problems. But to be honest, I've never had to use them in my own code.
Edit: I can't think off-hand of a convincing use for pointers to member data. Pointer to member functions can be used in pluggable architectures, but once again producing an...
M_PI works with math.h but not with cmath in Visual Studio
...ut:test.exe.
There must be a mismatch in the code you have posted and the one you're trying to compile.
Be sure there are no precompiled headers being pulled in before your #define.
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jQuery: Select data attributes that aren't empty?
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try
$(':not([data-go-to=""])')
UPDATE:
For the sake of not leading anyone astray, this answer will work in older versions of jQuery but is not future-proof. Since @gmo and @siva's answers both seem to be working with later versions I defer to (and encourage you to upvote) their answers....and ...