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Detect the Internet connection is offline?
...e that the connection is lost by making failed XHR requests.
The standard approach is to retry the request a few times. If it doesn't go through, alert the user to check the connection, and fail gracefully.
Sidenote: To put the entire application in an "offline" state may lead to a lot of error-p...
Apache Spark: The number of cores vs. the number of executors
...s a little more concrete, here’s a worked example of configuring a Spark app to use as much of the cluster as
possible: Imagine a cluster with six nodes running NodeManagers, each
equipped with 16 cores and 64GB of memory. The NodeManager capacities,
yarn.nodemanager.resource.memory-mb and
yarn.no...
What is the purpose of backbone.js?
...ntroller that in this case allows you to save the state of your Javascript application via a hashbang URL, for example: http://twitter.com/#search?q=backbone.js
Some pros that I discovered with Backbone:
No more Javascript Spaghetti: code is organized and broken down into semantically meaningful...
Android Respond To URL in Intent
...oesnt work for me. Can you please give an example-Link that would open the Application.
– Pascal Klein
Apr 1 '11 at 14:39
7
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Set HTTP header for one request
I have one particular request in my app that requires Basic authentication, so I need to set the Authorization header for that request. I read about setting HTTP request headers , but from what I can tell, it will set that header for all requests of that method. I have something like this in my cod...
Archiving project in Xcode incorrectly creates multi-application bundle
Archiving my project in Xcode is creating a multi-application bundle, instead of bundling my main target for release, which is what I want. Specifically, when I validate my archive in Organizer, it gives me the message:
...
Differences between “java -cp” and “java -jar”?
What is the difference between running a Java application with java -cp CLASSPATH and java -jar JAR_FILE_PATH ? Is one of them preferred to the other for running a Java application? I mean which one of these ways is more expensive for JVM (according to their machine resources usage)?
...
ngModel Formatters and Parsers
...ing in AngularJS?
To summarize:
Formatters change how model values will appear in the view.
Parsers change how view values will be saved in the model.
Here is a simple example, building on an example in the NgModelController api documentation:
//format text going to user (model to view)
...
py2exe - generate single executable file
...t release (1.3) is somewhat outdated. It's been working really well for an app which depends on PyQt, PyQwt, numpy, scipy and a few more.
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SPA best practices for authentication and session management
When building SPA style applications using frameworks like Angular, Ember, React, etc. what do people believe to be some best practices for authentication and session management? I can think of a couple of ways of considering approaching the problem.
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