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Is PHP's count() function O(1) or O(n) for arrays?

... @Matt IS_CONSISTENT() is just a sanity check on the array github.com/php/php-src/blob/PHP-5.3/Zend/zend_hash.c#L51 – John Carter Apr 20 '13 at 22:04 ...
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Cannot change column used in a foreign key constraint

...S person (person_id); UNLOCK TABLES; EDIT: Added locks above, thanks to comments You have to disallow writing to the database while you do this, otherwise you risk data integrity problems. I've added a write lock above All writing queries in any other session than your own ( INSERT, UPDA...
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What do the return values of node.js process.memoryUsage() stand for?

...e of the Heap heapUsed: Heap actually Used Ref: http://apmblog.dynatrace.com/2015/11/04/understanding-garbage-collection-and-hunting-memory-leaks-in-node-js/ share | improve this answer |...
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#ifdef in C#

... add a comment  |  53 ...
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How do you rebase the current branch's changes on top of changes being merged in?

...to merge in the changes from another branch (say master ), then I run the command git-merge master while on the working branch, and the changes get merged in without rebasing the history at all. If I run git-rebase master , then the changes in master are rebased to be put on the top of my w...
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c# datatable insert column at position 0

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Get __name__ of calling function's module in Python

... a nice writeup of the inspect module in his PyMOTW series: http://pymotw.com/2/inspect/index.html#module-inspect EDIT: Here's some code which does what you want, I think: def info(msg): frm = inspect.stack()[1] mod = inspect.getmodule(frm[0]) print '[%s] %s' % (mod.__name__, msg) ...
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How can I enable zoom in on UIWebView which inside the UIScrollView?

...ve a UIWebView which inside a UIScrollView (scrollview contain another component) 4 Answers ...
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Concatenate strings in Less

... Thanks @Paulpro! I was having an issue with VS Web Compiler add-on, where it was changing my background-image url, and I wasn't too sure how to do concatenation :) – hatsrumandcode Dec 22 '15 at 16:18 ...
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How do I add a password to an OpenSSH private key that was generated without a password?

... Try the command ssh-keygen -p -f keyfile From the ssh-keygen man page -p Requests changing the passphrase of a private key file instead of creating a new private key. The program will prompt for the file co...