ANGULAR 2 - first look by John Papa

Property Binding

HTTP Services: Observable and Subscribe

Async Pipe: How Components code is simplified by it

Async Pipe can return Promise (so you can use ".then(f())") instead of Observable if you want

Routes: Defining route in decorator @RouteConfig

Routes: Declaring Routing Directives in @Component

Routes: Use Routing in HTML

The main A2 imports

import { Component } from 'angular2/core';

import { HTTP_PROVIDERS } from 'angular2/http';

import { RouteConfig, ROUTER_DIRECTIVES, ROUTER_PROVIDERS } from 'angular2/router';

import 'rxjs/Rx'; // load the full rxjs

Use Routing for Menu with its Content

AGILE - comparison Agile with other mthodologies like Waterfall etc

SUMMARY

Waterfall

Waterfall V-Model

Agile comparison

Agile Manifesto

http://agilemanifesto.org/iso/en/

12 principles behind the Agile Manifesto can be split into 3 groups:

• Regular delivery of software
• Team communication
• Excellence in design

Our highest priority is to satisfy the customer through early and continues delivery of valuable software.

Delivery working software frequently (couple weeks - couple months), a preference is shorter timescale.

Working software is the primary measure of progress. (In Scrum the feature is DONE means it is potentially shippable).

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Business people and developers must work together daily. They should be available for each other.

Face-to-Face communication is a better way to convey the information.

Self-organised team gives the most valuable product.

Build projects around motivated individuals.

RETROSPECTIVE: At regular intervals, the team reflects on how to become more effective

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Continuous attention to technical excellence and good design enhances agility.

Simplicity is essential. Do just what you need now, not in sometime in the future.

Welcome changing requirements, event in late development.

===== METHODOLOGIES OF AGILE =======

Scrum is a lightweight management framework. 

Extreme programming is a disciplined approach at delivering high quality software quickly and continuously (delivery of 1-3 weeks).

Crystal methodology. 

Dynamic Systems Development Method.

Feature Driven Design. (FDD) (time-lapse 2 weeks)

Kanban.

Extreme Programming

Rules: planning, managing, design, coding, testing

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4 Activities: coding, testing, listening (customers & users), designing

5 Values: communication (f-2-f), simplicity (solving today's problem today), feedback, courage (realise issues and fix it), respect

3 Principles: feedback, assuming simplicity, embracing change

12 Practices /4 groups: fine-scale feedback (pair programming), continuous process, shared understanding, programmer welfare

29 Rules /5 groups: planning, managing, designing, coding 

SCRUM

Split in 3 areas:

Roles: product owner (ussualy analist that communicate w/customer), scrum master (servant leader that fullfill the needs of the team), scrum team (5-9 people)

Ceremonies: sprint planning meeting, sprint review, sprint retrospective, daily scrum

Artifacts: product backlog, sprint backlog, burndown chart

======= DIFFERENCE between SCRUM and EXTREME PROGRAMMING ====

Scrum - has sprints from 2 weeks up to 1 month

XP - has iterations from 2 weeks

Scrum - teams do not allow changes into their sprints

XP - amenable to change within their iterations

Scrum - the team determine the sequence in which they will develop backlog items

XP - teams work in a strict priority order

Scrum - doesn't prescribe any engineering pactices

XP - prescribes many engineering practices like TDD, Pair Programming, Continuous Integration 

In practice: team take Scrum, but adds some engineering practices from XP like TDD, Continuous integration, Code Review (instead of Pair Programming)