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ReactJS - Does render get called any time “setState” is called?

Does React re-render all components and sub components every time setState() is called? 7 Answers ...
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What is the fastest way to send 100,000 HTTP requests in Python?

... file which has 100,000 URL's. I need to send an HTTP request to each URL and print the status code. I am using Python 2.6, and so far looked at the many confusing ways Python implements threading/concurrency. I have even looked at the python concurrence library, but cannot figure out how to wri...
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How do you write multiline strings in Go?

... choice to write regular expression patterns as they usually contain non-standard escape sequences that would make the Go compiler complain of not double-escaped. It keeps the patterns clean and relatively readable. – jimt Oct 29 '11 at 1:35 ...
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How do you serialize a model instance in Django?

... You can easily use a list to wrap the required object and that's all what django serializers need to correctly serialize it, eg.: from django.core import serializers # assuming obj is a model instance serialized_obj = serializers.serialize('json', [ obj, ]) ...
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How is an HTTP POST request made in node.js?

... this were just a small part of the application, you would // want to handle this differently, maybe throwing an exception // for the caller to handle. Since the file is absolutely essential // to the program's functionality, we're going to exit with a fatal // error instead. con...
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What exactly is node.js used for? [closed]

...s uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices. Event-driven means that the server only reacts when an event occurs. This allow us to create high performance, highly...
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SQL Server: Database stuck in “Restoring” state

... You need to use the WITH RECOVERY option, with your database RESTORE command, to bring your database online as part of the restore process. This is of course only if you do not intend to restore any transaction log backups, i.e. you only wish to restore a database backup and then be able to acces...
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Declaring functions in JavaScript [duplicate]

...cally this syntax may mean the same for declaring functions both ways (I stand incorrect on my last statement. I read up on a diff post why they are technically diff and I'll add in the end, why) ; but the way they play a role in evolving patterns is massive. I would highly recommend "Javascript: Th...
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How do I make a textbox that only accepts numbers?

...e past I've done this kind of validation by overloading the KeyPress event and just removing characters which didn't fit the specification. I've looked at the MaskedTextBox control but I'd like a more general solution that could work with perhaps a regular expression, or depend on the values of othe...
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Using vagrant to run virtual machines with desktop environment

...l machines, running on VirtualBox. We would like to move one step further, and use the capabilities of Vagrant to have the description of the machine in a text file and then be able to "raise" that machine based on that text file. Combined to puppet, this would solve us the problem that everyone hav...