JavaScript From Zero to Hero: The Most Complete Guide Ever, Master Modern JavaScript Even If You’re New to Programming

Preface....9 Who is this book for?....9 How to Get the most out of this book?....9 Download the example code files....9 Obtain the images you will need....10 Chapter 1 – Strings and Regular Expressions....11 Unicode....11 Characters and Code points....11 String methods you should know about....13 Regular Expressions....17 Literal Characters....18 Flags/modifiers in Regular Expressions....19 RegExp Class....22 Character Classes together with brackets in Regular Expressions....22 Regular Expression character classes....23 Unicode: flag "u" and class \p{...}....24 Quantifiers in Regular Expressions....24 Alternatives....27 Grouping....27 Nested Groups....28 Named groups....30 Methods of the RegExp Class....31 String Methods on Regular Expressions....31 Search Method – search ()....31 Replace Method – replace ()....32 Summary....35 Chapter 2 - Asynchronous Programming....36 Callbacks....37 Timers....39 Canceling setTimeout using clearTimeout function....42 setInterval function....42 JavaScript Events....43 Network Events: XMLHttpRequest, Callbacks....43 Create XMLHttpRequest....44 Callback Hell....50 Promises....53 Immediately Settled Promises....55 Consuming Promises....56 Promise Chaining....57 Error – Rejection Handling....58 Try and Catch statement....59 Promise all....61 Promise Race....63 Promise Any....63 Async function....65 The syntax for the await is:....65 Arrow functions:....66 Anonymous and named functions:....66 Object methods:....66 Methods:....66 Promise-based Fetch API....66 Async/await Error Handling....78 for-await-of....79 Recall and async generators....81 Exercise....82 Summary....83 Chapter 3: JavaScript Modules....84 What are modules?....85 Exports and Imports....85 Exporting features without a name....89 Default keyword as reference....89 Re-exporting....90 Dynamic Imports....91 Important to know!....93 Summary....93 Chapter 4: Basic to Intermediate JavaScript....94 How to Run JavaScript?....95 How to write comments in JavaScript?....98 Identifiers....98 Statements....99 Case Sensitivity....99 Primitive and Object types....99 Variables and Assignment....99 Declaring a variable....100 Initializing a variable....100 Var, Let, and Const....101 Let....102 Const....102 Number Literals....103 String Literals....103 Template Literals....103 Arithmetic Operators....105 String Concatenation +....107 Boolean Values....107 Null and Undefined....107 Comparison and Logical Operators....107 Objects....108 Create Objects using new keyword....109 Creating objects using Object.create()....110 Primitives passed by value....111 Arrays....112 Array Literals....112 Create Arrays using new Array ()....113 Spread Operator....113 Access Array Elements....114 Conditional Statements or Branches....115 If-else statement....115 Else if statement....116 Conditional (ternary) operator....116 Switch Statement....116 Assignment Operator....118 Operator....119 While Loop....119 Do While Loop....119 For Loop....120 for/of loop with objects....120 Object.keys() – for/of....121 Object.entries() – for/of....121 for/in loop....122 Functions....122 Declaring Functions....123 Invoke Functions....124 Function Expression....124 Invoke Function Expression....125 Arrow Function....125 Arrow function on arrays....126 Passing Arguments to functions....127 Default function parameters....128 Closures....128 OOP – Classes....130 Classes....131 Inheritance....131 Setters and Getters....133 Static properties and methods....133 Overriding methods....134 Strict Mode....135 ‘This’ keyword–function context....137 ‘This’ keyword – method invocation....138 Summary....138 Chapter 5: Final Chapter....139 DOM – Document Object Model....139 Introduction....139 DOM vs HTML Markup....146 DOM Tree and Nodes....148 Malformed HTML and DOM....155 Access the DOM Elements....156 Getting Element By ID....159 Getting Elements by Class name....161 Getting Elements by Tag name....163 Query Selectors....164 Traversing the DOM....167 Root Nodes....168 Parent Nodes....170 Children Nodes....172 Sibling Properties....177 Directions of Traversing....180 Select a specific child....183 Traversing DOM Upwards....184 Traversing the DOM Sideways....185 Creating, Inserting, and Removing Nodes from DOM....186 Creating New DOM Nodes....186 Insert Created Nodes Into the DOM....188 Modify DOM Classes, Styles, and Attributes....189 Modify the CSS styles....192 Modify the Attributes....194 JavaScript Events....198 Event Handler & Event Listener....198 Inline Event Handlers....198 Event Handler Properties....200 Event Listeners....201 Most Common JavaScript Events....202 Keyboard Events....202 Form Events....202 Summary....203 About the author....204 Appendix A: Basic to Intermediate JavaScript book....205 Appendix B: Exercises and learn more about JavaScript, HTML, and PHP....207 Appendix C: Resources....207