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Learning Ruby on Rails
...mind you, they are bit rough around the edges. BuildingWebApps has a free online course that starts doing screencasts halfway through.
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answered Sep 15 '08 at 13:26
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SQL-Server: Error - Exclusive access could not be obtained because the database is in use
...iate
and this one after restoring:
alter database [YourDBName]
set online
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Programmatically find the number of cores on a machine
...ks on FreeBSD and has since at least 2006. Also, that will return the CPUs online, if a system is capable of turning some off they might not be counted. Calling sysconf with "_SC_NPROCESSORS_CONF" will return the total CPUs configured.
– Chris S
Apr 23 '11 at 1...
How to use SCNetworkReachability in Swift
...st solution is to NOT use Reachability to determine whether the network is online. Just make your connection and handle errors if it fails. Making a connection can at times fire up the dormant offline radios.
The one valid use of Reachability is to use it to notify you when a network transitions fr...
Understanding the basics of Git and GitHub [closed]
...rast, GitHub is a website that allows you to publish your Git repositories online, which can be useful for many reasons (see #3).
Is Git saving every repository locally (in the user's machine) and in GitHub?
Git is known as a "distributed" (rather than "centralized") version control system beca...
How to get started on TDD with Ruby on Rails? [closed]
...his or
can I get everything just by playing
around with it and reading online
tutorials? If I need to read a book,
what book?
You do not need a book. The most efficient way of learning anything is: just do it. Go back to the book or online resources once you encounter a question or problem...
Most underused data visualization [closed]
...es the ability to create interactive 3D graphics. There are many examples online for this (including in the rgl documentation).
The R-Wiki has a nice example of how to plot 3D scatter plots using rgl.
GGobi
Another package that is worth knowing is rggobi. There is a Springer book on the subje...
JavaScript string encryption and decryption?
...nt of my writing AES algorithm is thought to be unbroken
Edit :
Seems online URL is down & you can use the downloaded files for encryption from below given link & place the respective files in your root folder of the application.
https://code.google.com/archive/p/crypto-js/downloads
o...
CAP theorem - Availability and Partition Tolerance
...re:
CA - data is consistent between all nodes - as long as all nodes are online - and you can read/write from any node and be sure that the data is the same, but if you ever develop a partition between nodes, the data will be out of sync (and won't re-sync once the partition is resolved).
CP - dat...
Unzip a file with php
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I can only assume your code came from a tutorial somewhere online? In that case, good job trying to figure it out by yourself. On the other hand, the fact that this code could actually be published online somewhere as the correct way to unzip a file is a bit frightening.
PHP has bui...