Functional Programming in JavaScript

1. Functional Programming in JavaScript 2. Credits 3. About the Author 4. About the Reviewers 5. www.PacktPub.com 6. Support files, eBooks, discount offers and more 7. Why Subscribe? 8. Free Access for Packt account holders 9. Preface 10. What this book covers 11. What you need for this book 12. Who this book is for 13. Conventions 14. Reader feedback 15. Customer support 16. Downloading the example code 17. Errata 18. Piracy 19. Questions 20. 1. The Powers of JavaScript's Functional Side – a Demonstration 21. Introduction 22. The demonstration 23. The application – an e-commerce website 24. Imperative methods 25. Functional programming 26. Summary 27. 2. Fundamentals of Functional Programming 28. Functional programming languages 29. What makes a language functional? 30. Advantages 31. Functional programming in a nonfunctional world 32. Working with functions 33. Self-invoking functions and closures 34. Higher-order functions 35. Pure functions 36. Anonymous functions 37. Method chains 38. Recursion 39. Lazy evaluation 40. The functional programmer's toolkit 41. Callbacks 42. Array.prototype.map() 43. Array.prototype.filter() 44. Array.prototype.reduce() 45. Honorable mentions 46. Summary 47. 3. Setting Up the Functional Programming Environment 48. Introduction 49. Functional libraries for JavaScript 50. Underscore.js 51. Fantasy Land 52. Bilby.js 53. Lazy.js 54. Bacon.js 55. Honorable mentions 56. Development and production environments 57. Browsers 58. Server-side JavaScript 59. CLI 60. Using functional libraries with other JavaScript modules 61. Functional languages that compile into JavaScript 62. Summary 63. 4. Implementing Functional Programming Techniques in JavaScript 64. Partial function application and currying 65. Function manipulation 66. Partial application 67. Currying 68. Function composition 69. Compose 70. Compositions versus chains 71. Programming with compose 72. Mostly functional programming 73. Handling events 74. Functional reactive programming 75. Reactivity 76. Putting it all together 77. Summary 78. 5. Category Theory 79. Category theory 80. Category theory in a nutshell 81. Type safety 82. Functors 83. Creating functors 84. Arrays and functors 85. Function compositions, revisited 86. Monads 87. Maybes 88. Promises 89. Lenses 90. jQuery is a monad 91. Implementing categories 92. Summary 93. 6. Advanced Topics and Pitfalls in JavaScript 94. Recursion 95. Tail recursion 96. Trampolining 97. The Y-combinator 98. Variable scope 99. Scope resolutions 100. Closures 101. Gotchas 102. Function declarations versus function expressions versus the function constructor 103. Function declarations 104. Function expressions 105. The function constructor 106. Unpredictable behavior 107. Summary 108. 7. Functional and Object-oriented Programming in JavaScript 109. JavaScript – the multi-paradigm language 110. JavaScript's object-oriented implementation – using prototypes 111. Inheritance 112. JavaScript's prototype chain 113. Inheritance in JavaScript and the Object.create() method 114. Mixing functional and object-oriented programming in JavaScript 115. Functional inheritance 116. Mixins 117. Summary 118. A. Common Functions for Functional Programming in JavaScript 119. B. Glossary of Terms 120. Index