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How to create an array containing 1…N
...alues by changing i+1 to expression required (e.g. i*2, -i, 1+i*2, i%2 and etc). If expression can be expressed by some function f then the first form becomes simply
[ ...Array(N).keys() ].map(f)
Examples:
Array.from({length: 5}, (v, k) => k+1);
// [1,2,3,4,5]
Since the array is initialize...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...in-kazan.ru.
All messages are loaded with an AJAX request. My goal is to fetch these messages with all their attributes (author, date, ...):
When I analyze the source code of the page I can't see all these messages because the web page uses AJAX technology. But I can with Firebug from Mozilla Fi...
Slow Requests on Local Flask Server
...Chrome displayed the expected screen, but everything else hung (curl, ffx, etc) until I either reloaded or closed the Chrome tab, at which point everything else that was waiting around returned a result.
My best guess is that Chrome was trying to keep the session open and Flask was blocking the sub...
Difference between app.all('*') and app.use('/')
...r middleware is reached (which handles all the method routes... GET, POST, etc).
NOTICE: app.router has been deprecated in express 4.x
app.use() attaches to the application's main middleware stack, so it's used in the order specified by middleware. eg, if you put it first, it will be the fir...
Advantages of std::for_each over for loop
... your mind to the rest of the STL-algorithms, like find_if, sort, replace, etc and these won't look so strange anymore. This can be a huge win.
Update 1:
Most importantly, it helps you go beyond for_each vs. for-loops like that's all there is, and look at the other STL-alogs, like find / sort / pa...
Python function overloading
...amp; ...) regular_bullet(...)
else if (...) curved_bullet(...)
//..etc..
}
Pass as many arguments to the c_function that exist, then do the job of determining which c function to call based on the values in the initial c function. So, python should only ever be calling the one c function. ...
How do I send a POST request with PHP?
... ]
]
);
// Parse the response object, e.g. read the headers, body, etc.
$headers = $response->getHeaders();
$body = $response->getBody();
// Output headers and body for debugging purposes
var_dump($headers, $body);
...
How to change the name of a Django app?
...step is deployed through all active checkouts (CI, other devs, production, etc) before the next step is tackled, it worked perfectly -- no problems with the existing historical migrations. Do the steps in order, and propagate the changes everywhere before moving to the following step.
...
Can I install Python windows packages into virtualenvs?
...there's a clean way. One option is to use a program like 7Zip (or winzip, etc) to directly extract the contents of the exe, then copy the relevent folders into your virtual site-packages folder. For example, if I extract "processing-0.5.2.win32-py2.5.exe", I find a folder "PLATLIB\processing" whic...
How should a model be structured in MVC? [closed]
...naware of storage - neither from where (SQL database, REST API, text file, etc.) nor even if they get saved or retrieved.
Data Mappers
These objects are only responsible for the storage. If you store information in a database, this would be where the SQL lives. Or maybe you use an XML file to store...