Practical Modern JavaScript. Dive into ES6 and the Future of JavaScript

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Spis treści ebooka

• Foreword
• Preface
  • Who Should Read This Book
  • Why Modern JavaScript?
  • How Is This Book Organized?
  • Conventions Used in This Book
  • OReilly Safari
  • How to Contact Us
  • Acknowledgments
• 1. ECMAScript and the Future of JavaScript
  • 1.1. A Brief History of JavaScript Standards
  • 1.2. ECMAScript as a Rolling Standard
  • 1.3. Browser Support and Complementary Tooling
    • 1.3.1. Introduction to the Babel Transpiler
    • 1.3.2. Code Quality and Consistency with ESLint
  • 1.4. Feature Themes in ES6
  • 1.5. Future of JavaScript
• 2. ES6 Essentials
  • 2.1. Object Literals
    • 2.1.1. Property Value Shorthands
    • 2.1.2. Computed Property Names
    • 2.1.3. Method Definitions
  • 2.2. Arrow Functions
    • 2.2.1. Lexical Scoping
    • 2.2.2. Arrow Function Flavors
    • 2.2.3. Merits and Use Cases
  • 2.3. Assignment Destructuring
    • 2.3.1. Destructuring Objects
    • 2.3.2. Destructuring Arrays
    • 2.3.3. Function Parameter Defaults
    • 2.3.4. Function Parameter Destructuring
    • 2.3.5. Use Cases for Destructuring
  • 2.4. Rest Parameter and Spread Operator
    • 2.4.1. Rest Parameters
    • 2.4.2. Spread Operator
  • 2.5. Template Literals
    • 2.5.1. String Interpolation
    • 2.5.2. Multiline Template Literals
    • 2.5.3. Tagged Templates
  • 2.6. let and const Statements
    • 2.6.1. Block Scoping and let Statements
    • 2.6.2. Temporal Dead Zone
    • 2.6.3. Const Statements
    • 2.6.4. Merits of const and let
• 3. Classes, Symbols, Objects, and Decorators
  • 3.1. Classes
    • 3.1.1. Class Fundamentals
    • 3.1.2. Properties and Methods in Classes
    • 3.1.3. Extending JavaScript Classes
  • 3.2. Symbols
    • 3.2.1. Local Symbols
    • 3.2.2. Practical Use Cases for Symbols
      • Defining protocols through symbols
    • 3.2.3. Global Symbol Registry
      • Getting symbols with Symbol.for(key)
      • Using Symbol.keyFor(symbol) to retrieve symbol keys
      • Best practices and considerations
    • 3.2.4. Well-Known Symbols
      • Shared across realms but not in the registry
  • 3.3. Object Built-in Improvements
    • 3.3.1. Extending Objects with Object.assign
    • 3.3.2. Comparing Objects with Object.is
    • 3.3.3. Object.setPrototypeOf
  • 3.4. Decorators
    • 3.4.1. A Primer on JavaScript Decorators
    • 3.4.2. Stacking Decorators and a Warning About Immutability
    • 3.4.3. Use Case By Example: Attributes in C#
    • 3.4.4. Marking Properties in JavaScript
• 4. Iteration and Flow Control
  • 4.1. Promises
    • 4.1.1. Getting Started with Promises
    • 4.1.2. Promise Continuation and Chaining
    • 4.1.3. Creating a Promise from Scratch
    • 4.1.4. Promise States and Fates
    • 4.1.5. Promise#finally Proposal
    • 4.1.6. Leveraging Promise.all and Promise.race
  • 4.2. Iterator Protocol and Iterable Protocol
    • 4.2.1. Understanding Iteration Principles
    • 4.2.2. Infinite Sequences
    • 4.2.3. Iterating Object Maps as Key/Value Pairs
    • 4.2.4. Building Versatility Into Iterating a Playlist
  • 4.3. Generator Functions and Generator Objects
    • 4.3.1. Generator Fundamentals
    • 4.3.2. Iterating over Generators by Hand
    • 4.3.3. Mixing Generators into Iterables
    • 4.3.4. Tree Traversal Using Generators
    • 4.3.5. Consuming Generator Functions for Flexibility
    • 4.3.6. Dealing with Asynchronous Flows
    • 4.3.7. Throwing Errors at a Generator
    • 4.3.8. Returning on Behalf of a Generator
    • 4.3.9. Asynchronous I/O Using Generators
  • 4.4. Async Functions
    • 4.4.1. Flavors of Async Code
    • 4.4.2. Using async/await
    • 4.4.3. Concurrent Async Flows
    • 4.4.4. Error Handling
    • 4.4.5. Understanding Async Function Internals
  • 4.5. Asynchronous Iteration
    • 4.5.1. Async Iterators
    • 4.5.2. Async Generators
• 5. Leveraging ECMAScript Collections
  • 5.1. Using ES6 Maps
    • 5.1.1. First Look into ES6 Maps
    • 5.1.2. Hash-Maps and the DOM
  • 5.2. Understanding and Using WeakMap
    • 5.2.1. Is WeakMap a Worse Map?
  • 5.3. Sets in ES6
  • 5.4. ES6 WeakSets
• 6. Managing Property Access with Proxies
  • 6.1. Getting Started with Proxy
    • 6.1.1. Trapping get Accessors
    • 6.1.2. Trapping set Accessors
    • 6.1.3. Schema Validation with Proxies
  • 6.2. Revocable Proxies
  • 6.3. Proxy Trap Handlers
    • 6.3.1. has Trap
    • 6.3.2. deleteProperty Trap
    • 6.3.3. defineProperty Trap
    • 6.3.4. ownKeys Trap
  • 6.4. Advanced Proxy Traps
    • 6.4.1. getOwnPropertyDescriptor Trap
    • 6.4.2. apply Trap
    • 6.4.3. construct Trap
    • 6.4.4. getPrototypeOf Trap
    • 6.4.5. setPrototypeOf Trap
    • 6.4.6. preventExtensions Trap
    • 6.4.7. isExtensible Trap
• 7. Built-in Improvements in ES6
  • 7.1. Numbers
    • 7.1.1. Binary and Octal Literals
    • 7.1.2. Number.isNaN
    • 7.1.3. Number.isFinite
    • 7.1.4. Number.parseInt
    • 7.1.5. Number.parseFloat
    • 7.1.6. Number.isInteger
    • 7.1.7. Number.EPSILON
    • 7.1.8. Number.MAX_SAFE_INTEGER and Number.MIN_SAFE_INTEGER
    • 7.1.9. Number.isSafeInteger
  • 7.2. Math
    • 7.2.1. Math.sign
    • 7.2.2. Math.trunc
    • 7.2.3. Math.cbrt
    • 7.2.4. Math.expm1
    • 7.2.5. Math.log1p
    • 7.2.6. Math.log10
    • 7.2.7. Math.log2
    • 7.2.8. Trigonometric Functions
    • 7.2.9. Math.hypot
    • 7.2.10. Bitwise Computation Helpers
      • Math.clz32
      • Math.imul
      • Math.fround
  • 7.3. Strings and Unicode
    • 7.3.1. String#startsWith
    • 7.3.2. String#endsWith
    • 7.3.3. String#includes
    • 7.3.4. String#repeat
    • 7.3.5. String Padding and Trimming
    • 7.3.6. Unicode
    • 7.3.7. String.prototype[Symbol.iterator]
    • 7.3.8. A Proposal to Split Grapheme Segments
    • 7.3.9. String#codePointAt
    • 7.3.10. String.fromCodePoint
    • 7.3.11. Unicode-Aware String Reversal
    • 7.3.12. String#normalize
  • 7.4. Regular Expressions
    • 7.4.1. Sticky Matching Flag /y
    • 7.4.2. Unicode Flag /u
    • 7.4.3. Named Capture Groups
    • 7.4.4. Unicode Property Escapes
    • 7.4.5. Lookbehind Assertions
    • 7.4.6. A New /s dotAll Flag
    • 7.4.7. String#matchAll
  • 7.5. Array
    • 7.5.1. Array.from
    • 7.5.2. Array.of
    • 7.5.3. Array#copyWithin
    • 7.5.4. Array#fill
    • 7.5.5. Array#find and Array#findIndex
    • 7.5.6. Array#keys
    • 7.5.7. Array#values
    • 7.5.8. Array#entries
    • 7.5.9. Array.prototype[Symbol.iterator]
• 8. JavaScript Modules
  • 8.1. CommonJS
  • 8.2. JavaScript Modules
    • 8.2.1. Strict Mode
    • 8.2.2. export Statements
      • Exporting a default binding
      • Named exports
      • Exporting lists
      • Bindings, not values
      • Exporting from another module
    • 8.2.3. import Statements
      • Importing default exports
      • Importing named exports
      • Wildcard import statements
    • 8.2.4. Dynamic import()
  • 8.3. Practical Considerations for ES Modules
• 9. Practical Considerations
  • 9.1. Variable Declarations
  • 9.2. Template Literals
  • 9.3. Shorthand Notation and Object Destructuring
  • 9.4. Rest and Spread
  • 9.5. Savoring Function Flavors
  • 9.6. Classes and Proxies
  • 9.7. Asynchronous Code Flows
  • 9.8. Complexity Creep, Abstractions, and Conventions
• Index

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