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Chapters Getting started with Xamarin.Forms Why Xamarin Forms and When to use Xamarin Forms Xamarin Forms Layouts Xamarin Relative Layout Navigation in Xamarin.Forms Xamarin.Forms Page Xamarin.Forms Cells Xamarin.Forms Views Using ListViews Display Alert Accessing native features with DependencyService DependencyService Custom…

Chapters Getting started with Visual Basic .NET Language Declaring variables Introduction to Syntax Operators Conditions Short-Circuiting Operators (AndAlso – OrElse) Date Array Lists Enum Dictionaries Looping File Handling File/Folder Compression Connection Handling Data Access Type conversion ByVal and ByRef keywords…

Chapters Getting started with VBA Comments String Literals – Escaping, non-printable characters and line-continuations VBA Option Keyword Declaring Variables Declaring and assigning strings Concatenating strings Frequently used string manipulation Substrings Searching within strings for the presence of substrings Assigning strings…

Chapters Getting started with TypeScript Why and when to use TypeScript TypeScript Core Types Arrays Enums Functions Classes Class Decorator Interfaces Generics Strict null checks User-defined Type Guards TypeScript basic examples Importing external libraries Modules – exporting and importing Publish…

Chapters Getting started with Swift Language Variables & Properties Numbers Strings and Characters Booleans Arrays Tuples Enums Structs Sets Dictionaries Switch Optionals Conditionals Error Handling Loops Protocols Functions Extensions Classes Type Casting Generics OptionSet Reading & Writing JSON Advanced Operators…

Chapters Getting started with Microsoft SQL Server Data Types Converting data types User Defined Table Types SELECT statement Alias Names in SQL Server NULLs Variables Dates Generating a range of dates Database Snapshots COALESCE IF…ELSE CASE Statement INSERT INTO MERGE…

Chapters Getting started with Spring Framework Spring Core Spring Expression Language (SpEL) Obtaining a SqlRowSet from SimpleJdbcCall Creating and using beans Bean scopes Conditional bean registration in Spring Spring JSR 303 Bean Validation ApplicationContext Configuration RestTemplate Task Execution and Scheduling…

Chapters Getting started with Ruby on Rails Routing ActiveRecord Views ActiveRecord Migrations Rails Best Practices Naming Conventions ActionCable ActiveModel User Authentication in Rails ActiveRecord Associations ActiveRecord Validations ActiveRecord Query Interface ActionMailer Rails generate commands Configuration I18n – Internationalization Using GoogleMaps…

Chapters Getting started with Ruby Language Casting (type conversion) Operators Variable Scope and Visibility Environment Variables Constants Special Constants in Ruby Comments Arrays Multidimensional Arrays Strings DateTime Time Numbers Symbols Comparable Control Flow Methods Hashes Blocks and Procs and Lambdas…

Chapters Getting started with React Native Hello World Props Multiple props rendering Modal State Routing Styling Layout Components ListView RefreshControl with ListView WebView Command Line Instructions HTTP Requests Platform Module Images Custom Fonts Animation API Android – Hardware Back Button…

Chapters Getting started with React Components Using ReactJS with TypeScript State in React Props in React React Component Lifecycle Forms and User Input React Boilerplate [React + Babel + Webpack] Using ReactJS with jQuery React Routing Communicate Between Components How…

Chapters Getting started with R Language Variables Arithmetic Operators Matrices Formula Reading and writing strings String manipulation with stringi package Classes Lists Hashmaps Creating vectors Date and Time The Date class Date-time classes (POSIXct and POSIXlt) The character class Numeric…

Chapters Getting started with Python Language Python Data Types Indentation Comments and Documentation Date and Time Date Formatting Enum Set Simple Mathematical Operators Bitwise Operators Boolean Operators Operator Precedence Variable Scope and Binding Conditionals Comparisons Loops Arrays Multidimensional arrays Dictionary…

Chapters Getting started with PowerShell Variables in PowerShell Operators Special Operators Basic Set Operations Conditional logic Loops Switch statement Strings HashTables Working with Objects PowerShell Functions PowerShell Classes PowerShell Modules PowerShell profiles Calculated Properties Using existing static classes Built-in variables…