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Reading a binary file with python
... ignore the heading bytes and the trailing byte (= 24); The remaining part forms the body, to know the number of bytes in the body do an integer division by 4; The obtained quotient is multiplied by the string 'i' to create the correct format for the unpack method:
struct.unpack("i" * ((len(fileCon...
How do I automatically sort a has_many relationship in Rails?
...mments.all(:order => 'created_at DESC')
Your mileage may vary: the performance characteristics of the above solutions will change wildly depending on how you're fetching data in the first place and which Ruby you're using to run your app.
...
Why should eval be avoided in Bash, and what should I use instead?
...e-for-use-in-situation-XYZ; in our case, it's any string that has not been formatted so as to be safe for evaluation.
Sanitizing data appears easy at first glance. Assuming we're throwing around a list of options, bash already provides a great way to sanitize individual elements, and another way t...
What is the use of Enumerable.Zip extension method in Linq?
...ne, into a single new sequence. So you take an element of sequence A, transform it with the corresponding element from sequence B, and the result forms an element of sequence C.
One way to think about it is that it's similar to Select, except instead of transforming items from a single collection, ...
How to do a git diff on moved/renamed file?
...
The first form works for me, if you cd to the directory and do not add -- before the commit:path pair. Git appears to be very picky with syntax here.
– dhardy
Nov 28 '16 at 14:48
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String.IsNullOrWhiteSpace in LINQ Expression
...nt importance to employ 'string.Empty' over "" (aka the empty string). The former works the latter doesn't (at least as far as Oracle's EF driver is concerned). Aka if you use: b.Diameter.Trim() == "" <-- this won't work as intended (crazy I know ...)
– XDS
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Can you get DB username, pw, database name in Rails?
...hin rails you can create a configuration object and obtain the necessary information from it:
config = Rails.configuration.database_configuration
host = config[Rails.env]["host"]
database = config[Rails.env]["database"]
username = config[Rails.env]["username"]
password = config[Rails.env]["pa...
Disabling Strict Standards in PHP 5.4
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
...
What is the exact problem with multiple inheritance?
... also about increasing the expressiveness of a language, and increasing performance.
– Miles Rout
Jan 16 '13 at 7:19
4
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Variable number of arguments in C++?
...ans to tell the length of the list. You need the caller to give you this information or else somehow figure it out yourself. In the case of printf(), for example, the function parses the string argument for special tokens to figure out how many extra arguments it should expect in the variable argume...