JavaScript Essentials for SAP ABAP Developers A Guide to Mobile and Desktop Application Development 1st Edition by Rehan Zaidi 1484222201 9781484222201

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ISBN 10: 1484222201 

ISBN 13: 9781484222201

Author: Rehan Zaidi 

Easily master JavaScript (JS) with this quick guide and develop mobile and desktop applications for SAP Fiori. This book equips ABAP/SAP developers with the essential topics to get started with JS. The focus of JavaScript Essentials for SAP ABAP Developers is on the parts of the JS language that are useful from the perspective of an ABAP developer. The book starts with a brief intro to HTML, the basics of JS, and how to create and run a simple JS program. It then dives into the details of the language, showing how to make simple programs. It covers loops in detail, mathematical operations, and string and regular expressions in JS, as well as a taste of functions, followed by objects and object-oriented programming in JavaScript. The book provides: Sample code and screenshots to help you fully understand JS A chapter on JS best practices and recommendations Differences and comparisons of the elements and data structures of ABAP and JavaScript to help you quickly master the material What You’ll Learn Create and run a simple JavaScript program Understand loops, operations, and expressions Master the Create and Use functions Use objects and object-oriented programming in JS Apply the best practices of JS programming Who This Book Is For SAP programmers and developers, ABAP users and developers, and university students learning ABAP and JavaScript

JavaScript Essentials for SAP ABAP Developers: A Guide to Mobile and Desktop Application Development 1st table of contents: 

Chapter 1: Introduction to JavaScript
Brief JavaScript Background
Inside a JavaScript Program
Creating a Simple JS Program
A Quick Look at HTML
Putting JavaScript in HTML Code
Writing JS Code Within the and Tags
Writing JS Code Within the and Tags
Creating JS Code in a Separate File
Variable Declaration in JavaScript
Using Eclipse
Summary
Chapter 2: A Step Ahead in JavaScript
Window Object
Data Types in JavaScript
String
Number
Undefined
Null
Object
Objects Within Objects
Boolean
The typeof Operator
Method console.log
Taking Input from the User
Commonly Used Keywords in JavaScript
Summary
Chapter 3: Operators in JavaScript
Arithmetic Operators
Addition Operator
Subtraction Operator
Multiplication Operator
Division Operator
Remainder Operator
Exponentiation Operator
Increment Operator
Decrement Operator
Unary Negation Operator
Comparison Operators
Greater Than Operator
Less Than Operator
Greater Than or Equal To Operator
Less Than or Equal To Operator
Equality and Inequality Operators
Equality Operator
Inequality Operator
Strict Equality (Identity) Operator
Non-identity/Strict Inequality Operator
Logical Operators
Bitwise Operators
Bitwise AND
Bitwise OR
Bitwise XOR
Bitwise NOT
Bitwise Left Shift
Bitwise Unsigned Right Shift
Bitwise Signed Right Shift
Coding Example
Assignment Operators
String Operator
Summary
Chapter 4: Control Structures in JavaScript
Block Statement
Conditional Statements
if…else Statement
switch Statement
Loops in JavaScript
while Loop
do…while Loop
for Loop
for…in Loop
Label Statement
Summary
Chapter 5: Regular Expressions and String Methods
Regular Expressions: An Overview
String Methods
search Method
replace Method
match Method
split Method
Regular Expression Object
Regular Expression Object Properties
constructor Property
global Property
ignoreCase Property
lastIndex Property
multiline Property
source Property
Regular Expression Object Methods
exec Method
test Method
toString Method
Summary
Chapter 6: Functions
Functions: An Overview
Declaring Functions
Using a Function Expression
Self-Invoking Functions
Named Function Expression
Anonymous Function
Using a Function Declaration
Summary Comparison of the Function Declaration and Function Expression
Function Parameters and Arguments
Missing Parameters and the undefined Value
arguments Array
Simulating Optional Parameter Passing
return Statement
Function Call
Parameter Pass by Value or Pass by Reference?
Function Naming
Summary
Chapter 7: Doing More with Functions
Hoisting in the Context of Functions
First-Class Citizens
Nested Functions
Lexical Scoping
Closures
Recursive Functions
Summary
Chapter 8: Object-Oriented Programming in JavaScript
Object-Oriented Programming in General
Object Instances and Constructors
Approach 1: Using an Object Literal
Approach 2: Using a Constructor Function
Approach 3: Using the Object() Constructor
Approach 4: Using the create() Method
JavaScript: A Prototype-Based Language
Prototypal Inheritance
Summary
Chapter 9: Objects
Array
Properties of Array Object
Property constructor
Property length
Array Methods
Method concat
Method pop
Boolean
Boolean Properties
Boolean Methods
Method valueOf
String
String Properties
Property length
String Methods
Method charAt
Method repeat
Method slice
Date
Date Properties
Property constructor
Date Methods
Using Property prototype with Method getDay()
Method setMonth
Summary
Chapter 10: JavaScript Object Notation (JSON)
JSON: An Overview
JSON Data Types
JSON Objects
JSON Arrays
JSON parse Method
JSON stringify Method
Summary
Chapter 11: Miscellaneous Topics
Strict Mode
Debugging JavaScript
Code Formatting Tips
Use a Semicolon at the End of Each Statement
Usage of Blanks
Usage of Comparison Operators
Function Curly Brackets
Correctly Formatted Code Example
Naming Convention for Variables
Runtime Error and Exception Handling
Best Practices in JavaScript
Avoid Use of Global Variables
Never Declare Objects for Numbers, Strings, or Booleans
Use of default Clause in switch Statements
Assigning Default Values in Parameter
Use === Comparison
Avoid Usage of Closures

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Tags: JavaScript Essentials, ABAP Developers, Desktop Application Development, Rehan Zaidi