Tutorial by Examples: ce

Since Node is single-threaded, there is a need of workaround if it comes to a long-running calculations. Note: this is "ready to run" example. Just, don't forget to get jQuery and install the required modules. Main logic of this example: Client sends request to the server. Server sta...

Arrays in MATLAB are held as continuous blocks in memory, allocated and released automatically by MATLAB. MATLAB hides memory management operations such as resizing of an array behind easy to use syntax: a = 1:4 a = 1 2 3 4 a(5) = 10 % or alternatively a = [a, 10] a = ...

If you have a list in memory already, the straightforward and usually sufficient way to process it is a simple foreach loop: foreach my $item (@items) { ... } This is fine e.g. for the common case of doing some processing on $item and then writing it out to a file without keeping the data ...

There are many fine ways to get this done, which others have already suggested. Following along the "get Excel data via SQL track", here are some pointers. Excel has the "Data Connection Wizard" which allows you to import or link from another data source or even within the very ...

Sometimes it is necessary to assert when an exception is thrown. Different unit testing frameworks have different conventions for asserting that an exception was thrown, (like NUnit's Assert.Throws method). This example does not use any framework specific methods, just built in exception handling. ...

docker network create -o "com.docker.network.bridge.enable_ip_masquerade"="false" lan-restricted Blocks Local LAN Internet Does not block Host running docker daemon (example access to 10.0.1.10:22)

docker network create -o "com.docker.network.bridge.enable_icc"="false" icc-restricted Blocks Containers accessing other containers on the same icc-restricted network. Does not block Access to host running docker daemon Local LAN Internet

iptables -I INPUT -i docker0 -m addrtype --dst-type LOCAL -j DROP Blocks Access to host running docker daemon Does not block Container to container traffic Local LAN Internet Custom docker networks that doesn't use docker0

docker network create --subnet=192.168.0.0/24 --gateway=192.168.0.1 --ip-range=192.168.0.0/25 local-host-restricted iptables -I INPUT -s 192.168.0.0/24 -m addrtype --dst-type LOCAL -j DROP Creates a network called local-host-restricted which which: Blocks Access to host running docker daem...

After succesfully setup Spring-Boot application all the configuration is handled in an application.properties file. You will find the file at src/main/resources/. Normally there is a need to have a database behind the application. For development its good to have a setup of dev and a prod environme...

Example of how ReplaceAll only applies a rule at most once, while ReplaceRepeated will do so in a loop but always restart application from the first rule. x + a /. { a_ + z :> (Print[0]; DoneA), a_ + x :> (Print[1]; y + z), a_ + y :> (Print[2]; DoneB)} (* Prints "1&quot...

In order to run Elasticsearch, a Java Runtime Environment (JRE) is required on the machine. Elasticsearch requires Java 7 or higher and recommends Oracle JDK version 1.8.0_73. So, be sure if you have Java in your system. If not, then follow the procedure: # Install wget with yum yum -y install w...

This example scans for available access points and ad hoc networks. btnScan activates a scan initiated by the WifiManager.startScan() method. After the scan, WifiManager calls the SCAN_RESULTS_AVAILABLE_ACTION intent and the WifiScanReceiver class processes the scan result. The results are displaye...

Go to File -> Switch Workspace -> Other... and type in your new workspace name.

Disable Private Browsing Open your device’s Safari settings and ensure that Private Browsing is turned off. Remote debugging will not work if Private Browsing is enabled. Enable Web Inspector Tap the Advanced tab on your device’s Safari settings and ensure that Web Inspector is turned on....

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Data Access Object(DAO) design pattern is a standard J2EE design pattern. In this design pattern data is accessed through classes containing methods to access data from databases or other sources, which are called data access objects. Standard practice assumes that there are POJO classes. DAO can b...

This example shows how you can use IIS Rewrite rules to force HTTPS by making all HTTP requests return a 301 (Permanent) Redirect to the HTTPS page. This is usually better than using the [RequireHttps] attribute because the attribute uses a 302 redirect, and being in the MVC pipeline it is much slo...

Bootstrap provides a couple of classes for advanced table styling. Striped rows You will have a table with striped rows, if you add .table-striped class: <table class="table table-striped"> <thead><tr><th>First Name</th><th>Last name</th><...

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