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Different ways of adding to Dictionary
...if it does and the parameter add is true, it throws the exception.
So for all purposes and intents the performance is the same.
Like a few other mentions, it's all about whether you need the check, for attempts at adding the same key twice.
Sorry for the lengthy post, I hope it's okay.
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How do I close a connection early?
I'm attempting to do an AJAX call (via JQuery) that will initiate a fairly long process. I'd like the script to simply send a response indicating that the process has started, but JQuery won't return the response until the PHP script is done running.
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IIS7 Overrides customErrors when setting Response.StatusCode?
...ing on value of fTrySkipCustomErrors returned in IHttpResponse::GetStatus call. When fTrySkipCustomErrors is set to true, custom error module will let the response pass through but if it is set to false, custom errors module replaces text with its own text.
More information: What to expect from II...
Fast way to get image dimensions (not filesize)
...r if it reads the whole data for that though. See the manpage of exiv2 for all supported image formats.
head -n1 will give you the dimensions for PPM, PGM formats.
For formats popular on the web, both exiv2 and identify will do the job.
Depending on the use-case you may need to write your own scri...
How to “pull” from a local branch into another one?
...ut. I made an experimental branch a while ago, and now I'd like to pull in all the changes that happened on master since I made it. This is all local. I want to pull from local master into local my_branch, but I can't do it. This doesn't seem to work, telling me that master isn't a git repository:
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How do I escape a reserved word in Oracle?
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Try it in all uppercase "TABLE".
– RSHAP
Aug 14 '18 at 15:42
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Generator Expressions vs. List Comprehension
...or slicing
print [5,6] + gen() # generators can't be added to lists
Basically, use a generator expression if all you're doing is iterating once. If you want to store and use the generated results, then you're probably better off with a list comprehension.
Since performance is the most common rea...
How to modify existing, unpushed commit messages?
... the most recent commit message
git commit --amend
will open your editor, allowing you to change the commit message of the most recent commit. Additionally, you can set the commit message directly in the command line with:
git commit --amend -m "New commit message"
…however, this can make multi-...
How to do two-way filtering in AngularJS?
...ion? Isn't that just a generic controller for the directive that has basically nothing to do with the ngModel attribute? (Still learning angular here so I could be totally wrong.)
– Drew Miller
Dec 17 '12 at 1:52
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What is the correct answer for cout
...r<<(std::operator<<(std::cout, a++), a);
C++ guarantees that all side effects of previous evaluations will have been performed at sequence points. There are no sequence points in between function arguments evaluation which means that argument a can be evaluated before argument std::ope...