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JavaScript variable assignments from tuples
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This is not standards-based javascript, but rather Mozilla-specific extensions.
– ninjagecko
Apr 24 '12 at 12:41
14
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How to access command line parameters?
...Rust, a macro can be used to automatically generate the struct and do type based decoding:
docopt!(Args, "
Usage: cp [-a] SOURCE DEST
cp [-a] SOURCE... DIR
Options:
-a, --archive Copy everything.
")
And you can get the args with:
let args: Args = Args::docopt().decode().unwrap_or_el...
How to format a JavaScript date
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All these keys are optional. You can change the number of options values based on your requirements, and this will also reflect the presence of each date time term.
Note: If you would only like to configure the content options, but still use the current locale, passing null for the first paramete...
How to scale threads according to CPU cores?
...):
service.shutdown();
Here just a quick outline how to set up a future based MT code (offtopic, for illustration):
CompletionService<YourCallableImplementor> completionService =
new ExecutorCompletionService<YourCallableImplementor>(service);
ArrayList<Future<YourCall...
How to convert DateTime to VarChar
...n 2005(!) should check out the answer by Zar Shardan suggesting a solution based on FORMAT(date_value, format_string) function.
– Nickolay
Jan 25 '17 at 15:28
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IPC performance: Named Pipe vs Socket
...nted a project in C with named pipes, thanks to standart file input-output based communication (fopen, fprintf, fscanf ...) it was so easy and clean (if that is also a consideration).
I even coded them with java (I was serializing and sending objects over them!)
Named pipes has one disadvantage:
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Fastest way to find second (third…) highest/lowest value in vector or column
...implementations discussed above
Also the methods discussed above that are based on partial sort, don't support finding the k smallest values
Rfast::nth(x, 5, descending = T)
Will return the 5th largest element of x, while
Rfast::nth(x, 5, descending = F)
Will return the 5th smallest element o...
PostgreSQL: Show tables in PostgreSQL
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From the psql command line interface,
First, choose your database
\c database_name
Then, this shows all tables in the current schema:
\dt
Programmatically (or from the psql interface too, of course):
SELECT * FROM pg_catalog.pg_tables;
The system tables live in the pg_catalo...
remove_if equivalent for std::map
I was trying to erase a range of elements from map based on particular condition. How do I do it using STL algorithms?
13 A...
How to parse/read a YAML file into a Python object? [duplicate]
.../wiki/PyYAMLDocumentation:
add_path_resolver(tag, path, kind) adds a path-based implicit tag resolver. A path is a list of keys that form a path to a node in the representation graph. Paths elements can be string values, integers, or None. The kind of a node can be str, list, dict, or None.
#!/usr...