Tutorial by Examples: s

1:setting up the views

var express=require("express"); //express is included var path=require("path"); //path is included var app=express(); //app is an Express type of application app.set("views",path.resolve(__dirname,"views")); //tells express about the locati...

express • View engine setup

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

3.rendering view with express(refer 2.EJS file... before this)

app.get("/",function(req,res){ response.render("index",{ //render the index when root(/) is requested message:"rendered view with ejs" }); });

express • View engine setup

4.after rendering final HTML is created(refer 3.rendering... before this)

<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Hello, world!</title> </head> <body> message:"rendered view with ejs" </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 versions in Rails 1.x

ActionMailer ActionPack ActionWebService ActiveRecord ActiveSupport Railties

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

Syntax Reference

You can use @Value("#{expression}") to inject value at runtime, in which the expression is a SpEL expression. Literal expressions Supported types include strings, dates, numeric values (int, real, and hex), boolean and null. "#{'Hello World'}" //strings "#{3.1415926}&qu...

spring • Spring Expression Language (SpEL)

These are the basics.

JVM is an abstract computing machine or Virtual machine that resides in your RAM. It has a platform-independent execution environment that interprets Java bytecode into native machine code. (Javac is Java Compiler which compiles your Java code into Bytecode) Java program will be running inside the...

Java Language • Java Virtual Machine (JVM)

Basic Pane

import React from 'react'; class Pane extends React.Component { constructor(props) { super(props); } render() { return React.createElement( 'section', this.props ); } }

React • User interface solutions

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

Authentication Mechanisms

MongoDB supports multiple authentication mechanisms. Client and User Authentication Mechanisms SCRAM-SHA-1 X.509 Certificate Authentication MongoDB Challenge and Response (MONGODB-CR) LDAP proxy authentication, and Kerberos authentication Internal Authentication Mechan...

MongoDB • Authentication Mechanisms in MongoDB

Build-in Roles

Built-in database user roles and database administration roles roles exist in each database. Database User Roles read readwrite

MongoDB • MongoDB Authorization Model

Installation or Setup

Detailed instructions on getting arraylist set up or installed.

arraylist • Getting started with arraylist

Installation or Setup

Detailed instructions on getting Flash set up or installed.

Flash • Getting started with Flash

Getting Started with BigCommerce

Go to the BigCommerce homepage. Enter a store name in the field labeled Create your store name, then click Start my free trial now. Your store name can be changed at any time after starting your trial. Fill out the new trial store form, then click Create my store now. Once yo...

bigcommerce • Getting started with bigcommerce

Iterating over object properties

<div ng-repeat="(key, value) in myObj"> ... </div> For example <div ng-repeat="n in [42, 42, 43, 43]"> {{n}} </div>

AngularJS • ng-repeat

Tracking and Duplicates

ngRepeat uses $watchCollection to detect changes in the collection. When a change happens, ngRepeat then makes the corresponding changes to the DOM: When an item is added, a new instance of the template is added to the DOM. When an item is removed, its template instance is removed from the DOM...

AngularJS • ng-repeat

Snake (Game)

This extension adds a game named snake in the VSTS, which users can play while waiting for the long running build for example. Snake

Visual Studio Team Services • Building a Hub Extension