Tutorial by Examples: r

So the GNU coreutils should be avaialable on all linux based systems (please correct me if I am wrong here). If you do not know what system you are using you may not be able to directly jump to one of the examples above, hence this may be your first port of call. `$ uname -a On my system this giv...

The simplest form of wait statement is simply: wait; Whenever a process executes this it is suspended forever. The simulation scheduler will never resume it again. Example: signal end_of_simulation: boolean := false; ... process begin clock <= '0'; wait for 500 ps; clock <= '1...

AWS Codecommit can be used as storage for private GIT repositories. The setup involves a few steps, assuming you have a valid AWS account already. Sign up for AWS Codecommit. Currently only region us-east-1 is available. Create a IAM user who will have access to the repositories, eg codecommit-u...

Atlassian SourceTree is a visual tool for Mac and Windows to manage source code repositories. This can be used with Codecommit as a remote repository but need to add an extra configuration option to the local repository in SourceTree to be able to connect with codecommit. First, setup Codecommit fo...

public static final int PLACE_AUTOCOMPLETE_FROM_PLACE_REQUEST_CODE=1; public static final int PLACE_AUTOCOMPLETE_TO_PLACE_REQUEST_CODE=2; fromPlaceEdit.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { ...

<cffunction name="getUserById" access="public" returntype="query"> <cfargument name="userId" type="numeric" required="yes" hint="The ID of the user"> <cfquery name="local.qryGetUser" datasource...

Function Calls <!--- Load the user object based on the component path. ---> <cfset local.user = new com.User() /> <cfset local.allUsers = user.getAllUsers()> <cfset local.specificUser = user.getUserIdFromQry(qry = local.allUsers, userId = 1)> User.cfc <cfcompone...

At it's most basic level, acceptance testing is essentially black-box testing, which is fundamentally concerned with testing inputs and outputs of a closed system. As such, there are three essential features to acceptance testing: locating a resource, reading data, and writing data. When it comes to...

Since Nightwatch has access to the browser console, it's possible to inspect client side objects using the .execute() API. In the following example, we're checking the Session object for a particular session variable. First, we begin by creating the file ./tests/nightwatch/api/meteor/checkSession...

To upload a file, you'll first need to create a /data directory, and add the file you'll want to upload. tests/nightwatch/data/IM-0001-1001.dcm Your form will need an input with type of file. (Some people don't like the styling options this input provides; and a common pattern is to make this in...

Cgo enables the creation of Go packages that call C code. To use cgo write normal Go code that imports a pseudo-package "C". The Go code can then refer to types such as C.int, or functions such as C.Add. The import of "C" is immediately preceded by a comment, that comment, call...

In [1]: import pandas as pd In [2]: df = pd.DataFrame(columns = ['A', 'B', 'C']) In [3]: df Out[3]: Empty DataFrame Columns: [A, B, C] Index: [] Appending a row by a single column value: In [4]: df.loc[0, 'A'] = 1 In [5]: df Out[5]: A B C 0 1 NaN NaN Appending a ...

1 cd my/project/dir 2 git clone git://github.com/zendframework/ZendSkeletonApplication.git 3 cd ZendSkeletonApplication 4 php composer.phar self-update 5 php composer.phar install

We install OpenCV 3.1.0 on Windows and get started. There are two ways to install OpenCV on windows. One is to download the installer and run it. Other is to build from source. This is the easiest way to install OpenCV and get started. OpenCV gives pre-build binaries to install on Windows here. Aft...

To get products from the database, you need to use Magento 2's repository design pattern. Each module can be bundled with it's own repositories, and the Product Catalog module is not any different. You can use dependency injection in your class to access the repository. A working example would look...

Like classes, interfaces can receive polymorphic parameters (aka Generics) too. Declaring Generic Parameters on Interfaces interface IStatus<U> { code: U; } interface IEvents<T> { list: T[]; emit(event: T): void; getAll(): T[]; } Here, you can see that our t...

<?php wp_enqueue_style('theme-five', get_template_directory_uri() . '/path/to/additional/css'); wp_style_add_data('theme-five', 'alt', true); wp_style_add_data('theme-five', 'title', __('theme-five.css', 'your-theme-name')); ?> wp_style_add_data

In this example we use a parameter in the route to specify the page number. We set a default of 1 in the function parameter page=1. We have a User object in the database and we query it, ordering in descending order, showing latest users first. We then use the paginate method of the query object in ...

Here we use the object that we passed to render_template to display the pages, the current active page, and also a previous and next buttons if you can go to the previous/next page. <!-- previous page --> {% if users_list.has_prev %} <li> <a href="{{ url_for('users', page...

// An alert dialog $scope.showAlert = function() { var alertPopup = $ionicPopup.alert({ title: 'Don\'t eat that!', template: 'It might taste good' }); alertPopup.then(function(res) { console.log('Hello your first example.'); }); }; });