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You can access the exact same context as the method you override. class Boat def initialize(name) @name = name end def name @name end end puts Boat.new("Doat").name # => "Doat" class Boat def name "⛵ #{@name} ⛵" end end ...

class String def fancy "~~~{#{self}}~~~" end end puts "Dorian".fancy # => "~~~{Dorian}~~~"

<appSettings> <add key="ClientValidationEnabled" value="true"/> <add key="UnobtrusiveJavaScriptEnabled" value="true"/> </appSettings>

TStringList is a descendant of the TStrings class of the VCL. TStringList can be used for storing and manipulating of list of Strings. Although originally intended for Strings, any type of objects can also be manipulated using this class. TStringList is widely used in VCL when the the purpose is t...

Create a new application here: create application Choose standalone applicaton and confirm app creation via SMS. Fill Package namefor Android as your current package name. You can get your package name inside android manifest file, at the very begginning. Get your Certificate fingerprint by exe...

In Unity Editor, open Player Settings (Edit > Project Settings > Player). Under Other Settings, check Virtual Reality Supported. Add or remove VR devices for each build target in the Virtual Reality SDKs list under the checkbox.

What is an exception? Exception in PL/SQL is an error created during a program execution. We have three types of exceptions: Internally defined exceptions Predefined exceptions User-defined exceptions What is an exception handling? Exception handling is a possibility to keep o...

An internally defined exception doesn't have a name, but it has its own code. When to use it? If you know that your database operation might raise specific exceptions those which don't have names, then you can give them names so that you can write exception handlers specifically for them. Otherwis...

Predefined exceptions are internally defined exceptions but they have names. Oracle database raise this type of exceptions automatically. Example create or replace procedure insert_emp is begin insert into emp (emp_id, ename) values ('1','Jon'); exception when dup_val_on_index then ...

As the name suggest user defined exceptions are created by users. If you want to create your own exception you have to: Declare the exception Raise it from your program Create suitable exception handler to catch him. Example I want to update all salaries of workers. But if there are no work...

using CLI: $ opennlp SentenceDetector ./en-sent.bin < ./input.txt > output.txt using API: import static java.nio.file.Files.readAllBytes; import static java.nio.file.Paths.get; import java.io.IOException; import java.util.Objects; public class FileUtils { /** * Get file data as...

Sometimes there will be properties that aren't available in jQuery event. To access the underlying properties use Event.originalEvent Get Scroll Direction $(document).on("wheel",function(e){ console.log(e.originalEvent.deltaY) // Returns a value between -100 and 100 depending o...

Install the required dependencies: 'org.apache.solr:solr-solrj:5.5.1' 'org.apache.httpcomponents:httpclient:4.3.6' 'com.ibm.watson.developer_cloud:java-sdk:3.2.0' The code below assumes you have a Solr collection with documents and you have trained a ranker, otherwise follow this tutorial pub...

This command, given a commit range commit1..commit2, rewrites history so that git commit author becomes also git committer: git filter-branch -f --commit-filter \ 'export GIT_COMMITTER_NAME=\"$GIT_AUTHOR_NAME\"; export GIT_COMMITTER_EMAIL=\"$GIT_AUTHOR_EMAIL\"; exp...

To list all the git repository locations on your you can run the following find $HOME -type d -name ".git" Assuming you have locate, this should be much faster: locate .git |grep git$ If you have gnu locate or mlocate, this will select only the git dirs: locate -ber \\.git$

To comment on the same line as the code you can use &:: or &rem. You can also use && or || to replace &. Example : @echo off echo This is a test &::This is a comment echo This is another test &rem This is another comment pause A curiosity: SET command allows limit...

var Vehicle = Backbone.Model.extend({ description: function () { return 'I have ' + this.get('wheels') + ' wheels'; } }); var Bicycle = Vehicle.extend({ defaults: { wheels: 2 } }); var Car = Vehicle.extend({ defaults: { wheels: 4 } })...

To find a file in the Hadoop Distributed file system: hdfs dfs -ls -R / | grep [search_term] In the above command, -ls is for listing files -R is for recursive(iterate through sub directories) / means from the root directory | to pipe the output of first command to the second grep command t...

Note: The shown CMake error messages already include the fix for "non-standard" library/tool installation paths. The following examples just demonstrate more verbose CMake find_package() outputs. CMake internally supported Package/Module If the following code (replace the FindBoost modul...

In order to build an IPA file in XCode, you require to sign your application with a certificate and provisioning profile. These can be created at https://developer.apple.com/account/ios/profile/create Provisioning Profile Types Provisioning Profiles are split into two types, Development, and Distr...