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What is the Difference Between Mercurial and Git?
...heuristic like in Git, there is nothing in the model that precludes adding extra information to a snapshot, e.g., rename information. We do that in Mercurial.
– Martin Geisler
Jan 26 '11 at 9:05
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What is the fastest method for selecting descendant elements in jQuery?
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@J-P, I mean it needs to take the extra bit of time to recognize that a scope is being passed to translate it into the $parent.find(".child"); command.
– Aaron Harun
Jul 5 '10 at 7:51
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How can I access the MySQL command line with XAMPP for Windows?
...s-file=# Only read default options from the given file #.
--defaults-extra-file=# Read this file after the global files are read.
-?, --help Display this help and exit.
-I, --help Synonym for -?
--abort-source-on-error
Abort 'source filename' operations in case of erro...
Keystore type: which one to use?
... have covered JCEKS and PKCS12 today. For PKCS11, it involves hardware and extra configuration, need more time to compose it. pixelstech.net/article/… and pixelstech.net/article/…
– PixelsTech
Jan 5 '15 at 7:24
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A fast method to round a double to a 32-bit int explained
...I noticed that Lua uses a macro to round a double to a 32-bit int . I extracted the macro , and it looks like this:
3...
Casperjs/PhantomJs vs Selenium
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I am currently writing a web extraction framework. I have 524 tests that get data from 250 websites using XPath. Initially the framework used a HTML parser, HTMLCleaner, but I am currently investigating using Selenium because I want Javascript support. I...
How are Python's Built In Dictionaries Implemented?
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For a 64 bit machine, this could save up to 16 bytes per key per extra dictionary.
Shared Keys for Custom Objects & Alternatives
These shared-key dicts are intended to be used for custom objects' __dict__. To get this behavior, I believe you need to finish populating your __dict__ be...
C state-machine design [closed]
... an enum. It also makes for much cleaner code since you don't need all the extra cruft of function pointers or huge switch statements and while loops. Did I mention it's more efficient too?
Here's what a state machine might look like:
void state_machine() {
first_state:
// Do some stuff here
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When is it appropriate to use UDP instead of TCP? [closed]
...l data amount transmitted was about the same for both IP and TCP. We have extra overhead with the UDP communications because we have some of the same stuff that you get for "free" with TCP/IP (checksums, sequence numbers, etc.). For example, Wireshark showed that a request for the next set of reco...
When to add what indexes in a table in Rails
...add:
add_index :photos, [:created_at, :version]
Note:
An index takes up extra space on the disk and makes it slower to create and update each record, because it has to rebuild each index.
Credit:
https://tomafro.net/2009/08/using-indexes-in-rails-choosing-additional-indexes, rails - created_at ...