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Check if Internet Connection Exists with Javascript? [duplicate]

...e, then the test won't reveal what it is supposed to right? It would just fetch it from the local memory and not go online to fetch it? – Matt Welander Jun 23 '15 at 15:30 2 ...
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Show or hide element in React

...en element might still have some lifecycle methods running - eg. it might fetch some data from the server after every update even tho it's not visible the hidden element might crash the app if it'll receive incorrect data. It might happen as you can 'forget' about invisible nodes when updating the s...
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What is object serialization?

... // machine, a database, an in memory array, etc. new FileOutputStream(new File("o.ser"))); // do the magic oos.writeObject( instance ); // close the writing. oos.close(); } } When we run this progr...
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how to calculate binary search complexity

...is just formal mathematical lingo in order to be able to prove statements, etc. It has a very straightforward explanation. When n grows very large, the log n function will out-grow the time it takes to execute the function. The size of the "input set", n, is just the length of the list. Simply put,...
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Relation between CommonJS, AMD and RequireJS?

...sically, CommonJS specifies that you need to have a require() function to fetch dependencies, an exports variable to export module contents and a module identifier (which describes the location of the module in question in relation to this module) that is used to require the dependencies (source). C...
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C++ : why bool is 8 bits long?

...of addressing". For common processors, addressing a "byte" anyhow ends-up fetching more than a "byte" from external memory: this is due to efficiency reasons. – jldupont Jan 14 '10 at 14:34 ...
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How to send only one UDP packet with netcat?

...ocalhost/8000 and avoid all the idiosyncrasies and incompatibilities of netcat. This also works sending to other hosts, ex: echo -n "hello" >/dev/udp/remotehost/8000 These are not "real" devices on the file system, but bash "special" aliases. There is additional information in the Bash Manu...
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@Transactional(propagation=Propagation.REQUIRED)

...behaviours adopted for Transaction management, such as REQUIRED, ISOLATION etc. you'll have to understand the basics of transaction management itself. Read Trasaction management for more on explanation. share | ...
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jQuery Ajax calls and the Html.AntiForgeryToken()

... Nice, I like the encapsulation of the token fetching. – jball Nov 2 '10 at 1:18 2 ...
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How do I get started with Node.js [closed]

...ework with built-in support for input validation, caching, authentication, etc. Trails is a modern web application framework. It builds on the pedigree of Rails and Grails to accelerate development by adhering to a straightforward, convention-based, API-driven design philosophy. Danf is a full-stack...