Tutorial by Examples: in

What's the deal with the following? julia> @test 0.1 + 0.2 == 0.3 Test Failed Expression: 0.1 + 0.2 == 0.3 Evaluated: 0.30000000000000004 == 0.3 ERROR: There was an error during testing in record(::Base.Test.FallbackTestSet, ::Base.Test.Fail) at ./test.jl:397 in do_test(::Base.Test....

IIS / .NET version Requirements: See here SignalR 2+ Install the NuGet package Microsoft.AspNet.SignalR (this is the whole SignalR solution) and it will ask you to install any dependencies for other packages. Accept the terms and install them as well. Now that we've got the .dlls and clie...

You can see list with all environment variables with: Get-Childitem env:

$env:COMPUTERNAME

#requires -version 4 After trying to run this script in lower version, you will see this error message .\script.ps1 : The script 'script.ps1' cannot be run because it contained a "#requires" statement at line 1 for Windows PowerShell version 5.0. The version required by the script do...

4.0 #requires -RunAsAdministrator After trying to run this script without admin privileges, you will see this error message .\script.ps1 : The script 'script.ps1' cannot be run because it contains a "#requires" statement for running as Administrator. The current Windows PowerShell s...

Node.js npm install bluebird Then: var Promise = require("bluebird"); Browsers There are many ways to use bluebird in browsers: Direct downloads Full build bluebird.js Full build minified bluebird.min.js Core build bluebird.core.js Core build minified bluebird.core.min.js...

Detailed instructions on getting jsf-2 set up or installed. Requirements: JDK 1.6+ Java Servlet 2.5 Installing jsf-2 on Tomcat Installing jsf-2 on Glassfish

An expression template is a compile-time optimization technique used mostly in scientific computing. It's main purpose is to avoid unnecessary temporaries and optimize loop calculations using a single pass (typically when performing operations on numerical aggregates). Expression templates were init...

The Java programming language (and its runtime) has undergone numerous changes since its release since its initial public release. These changes include: Changes in the Java programming language syntax and semantics Changes in the APIs provided by the Java standard class libraries. Changes in ...

To install Cucumber for use with Ruby simply use the command gem install cucumber Alternatively, if you are using bundler, you can add the following line to your Gemfile gem 'cucumber' And then run bundler bundle install [I think this belongs in its own topic, Installation. I created tha...

Every Python statement in Vim should be prefixed with the :python command, to instruct Vim that the next command is not Vimscript but Python. To avoid typing this command on each line, when executing multi-line Python code, it is possible to instruct Vim to interpret the code between two marker exp...

Consider these two pieces of code: int a = 1000; int b = a + 1; and Integer a = 1000; Integer b = a + 1; Question: Which version is more efficient? Answer: The two versions look almost the identical, but the first version is a lot more efficient than the second one. The second version is...

You can organize the execution of your instrumented unit tests defining a Suite. /** * Runs all unit tests. */ @RunWith(Suite.class) @Suite.SuiteClasses({MyTest1.class , MyTest2.class, MyTest3.class}) public class AndroidTestSuite {} Then in AndroidStudio you can run...

Tableau offers a 2 week free trial for all of their licensed products. Tableau also offers licenses to Students for free here and nearly free Desktop licenses for non-profit organizations here. To get started with a free trial, navigate to Tableau Products to see a list of their offerings which inc...

You can set the minimum and the maximum date that UIDatePicker can show. Minimum date [datePicker setMinimumDate:[NSDate date]]; Maximum date [datePicker setMaximumDate:[NSDate date]];

You can change property minuteInterval to set the interval displayed by the minutes wheel. The default value is 1, the maximum value is 30. let datePicker = UIDatePicker(frame: CGRect(x: 0, y: 0, width: 320, height: 200) datePicker.minuteInterval = 15

3.0 Beginning with PowerShell 3.0, you can download and update the offline help documentation using a single cmdlet. Update-Help To update help on multiple computers (or computers not connected to the internet). Run the following on a computer with the help files Save-Help -DestinationPath ...

Get-Help can be used to view help in PowerShell. You can search for cmdlets, functions, providers or other topics. In order to view the help documentation about jobs, use: Get-Help about_Jobs You can search for topics using wildcards. If you want to list available help topics with a title start...

You can access online help documentation using: Get-Help Get-Command -Online