Tutorial by Examples: am

Unordered list example

Angular 2 • How to use ngfor

More complext template example

<div *ngFor="let item of items"> <p>{{item.name}}</p> <p>{{item.price}}</p> <p>{{item.description}}</p> </div>

Angular 2 • How to use ngfor

Tracking current interaction example

<div *ngFor="let item of items; let i = index"> <p>Item number: {{i}}</p> </div> In this case, i will take the value of index, which is the current loop iteration.

Angular 2 • How to use ngfor

Camel Case is the practise of writing compound words or phrases where every word begins with Capital letter, without space between word. The function camelize($string) helps to make a string camelized. It converts a string of words separated by spaces or underscores to camel case. echo camelize('Mc...

codeigniter • Play with English word with INFLECTOR helper

Examples: what works and what doesn't

create table tgt ( id, val ) as select 1, 'a' from dual union all select 2, 'b' from dual ; Table TGT created. create table src ( id, val ) as select 1, 'x' from dual union all select 2, 'y' from dual ; Table SRC created. update ( select t.val as t_val, s.val as s_val ...

Oracle Database • Update with Joins

Simple Selenium Example in C#

//Create a new ChromeDriver IWebDriver driver = new ChromeDriver(); //Navigate to www.google.com driver.Navigate().GoToUrl("https://www.google.com"); //Find the WebElement of the search bar IWebElement element = driver.FindElement(By.Name("q")); //Type Hello World int...

selenium • Getting started with selenium

Basic example of handling Session

1)First, add dependency in project.json - "Microsoft.AspNetCore.Session": "1.1.0", 2)In startup.cs and add AddSession() and AddDistributedMemoryCache() lines to the ConfigureServices like this- services.AddDistributedMemoryCache(); //This way ASP.NET Core will use a Memory Cach...

asp.net-core • Sessions in ASP.NET Core 1.0

basic example

As the last layer created by docker build -t mytag . showed ---> Running in d9a42e53eb5a You just launch the last created image with a shell and launch the command, and you will have a more clear error message docker run -it d9a42e53eb5a /bin/bash (this assumes /bin/bash is available, it ma...

Docker • How to debug when docker build fails

Example 1 - Basic use of hclust, display of dendrogram, plot clusters

The cluster library contains the ruspini data - a standard set of data for illustrating cluster analysis. library(cluster) ## to get the ruspini data plot(ruspini, asp=1, pch=20) ## take a look at the data hclust expects a distance matrix, not the original data. We ...

R Language • Hierarchical clustering with hclust

Example 2 - hclust and outliers

With hierarchical clustering, outliers often show up as one-point clusters. Generate three Gaussian distributions to illustrate the effect of outliers. set.seed(656) x = c(rnorm(150, 0, 1), rnorm(150,9,1), rnorm(150,4.5,1)) y = c(rnorm(150, 0, 1), rnorm(150,0,1), rnorm(150,5,1)) ...

R Language • Hierarchical clustering with hclust

Select distinct rows across dataframe

Let df = pd.DataFrame({'col_1':['A','B','A','B','C'], 'col_2':[3,4,3,5,6]}) df # Output: # col_1 col_2 # 0 A 3 # 1 B 4 # 2 A 3 # 3 B 5 # 4 C 6 To get the distinct values in col_1 you can use Series.unique() df['col_1'].unique() # Output: ...

pandas • Indexing and selecting data

Complete example : Login/logout a user

Prerequisites This topic is not about Redux and/or Ngrx : You need to be comfortable with Redux At least understand the basics of RxJs and Observable pattern First, let's define an example from the very beginning and play with some code : As a developer, I want to : Have an IUser inter...

Angular 2 • ngrx

Basic examples - Classification and Regression

###### Used for both Classification and Regression examples library(randomForest) library(car) ## For the Soils data data(Soils) ###################################################### ## RF Classification Example set.seed(656) ## for ...

R Language • Random Forest Algorithm

Storing Data in a Named Graph

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX owl: <http://www.w3.org/2002/07/owl#> PREFIX schema: <http://schema.org/> PREFIX foaf: <http://xmlns.com/foaf/0.1/> WITH <urn:this:database:doc> INSERT { <#relatedTo> a ...

sparql • Working with graphs

Passing a Switch parameter using Splatting

To use Splatting to call Get-Process with the -FileVersionInfo switch similar to this: Get-Process -FileVersionInfo This is the call using splatting: $MyParameters = @{ FileVersionInfo = $true } Get-Process @MyParameters Note: This is useful because you can create a default set of p...

PowerShell • Splatting

2.EJS file example(refer 1.setting up... before this)

the following is an ejs file. <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Hello, world!</title> </head> <body> <%= message %> </body> </html>

express • View engine setup

How to find what frameworks are available in the current version of Rails?

Use the config.frameworks option to get an array of Symbols that represent each framework.

Ruby on Rails • Rails frameworks over the years

Rails frameworks in Rails 2.x

ActionMailer ActionPack ActiveRecord ActiveResource (ActiveWebService was replaced by ActiveResource, and with that, Rails moved from SOAP to REST by default) ActiveSupport Railties

Ruby on Rails • Rails frameworks over the years

Rails frameworks in Rails 3.x

ActionMailer ActionPack ActiveModel ActiveRecord ActiveResource ActiveSupport Railties

Ruby on Rails • Rails frameworks over the years

Example view with `PanelGroup`s

import React from 'react'; import Pane from './components/Pane.js'; import Panel from './components/Panel.js'; import PanelGroup from './components/PanelGroup.js'; class MainView extends React.Component { constructor(props) { super(props); } render() { return...

React • User interface solutions