Index

A

• abstract classes
  • simulating, throw used / Getting ready, How it works...
• argument
  • class, passing as / Passing a class as an argument
• Array#every
  • used, for testing array values / Using Array#every and Array#some to test array values, How to do it..., How it works...
• Array#filter
  • used, for finding values in array / Using Array#find and Array#filter to find values in an array, How to do it..., How it works...
• Array#find
  • used, for finding values in array / Using Array#find and Array#filter to find values in an array, How to do it..., How it works...
• Array#slice
  • used, for obtaining subset of array / Using Array#slice to get a subset of the array, How to do it..., How it works...
• Array#some
  • used, for testing array values / Using Array#every and Array#some to test array values, How to do it..., How it works...
• Array.map
  • used, for producing values / Using Array.map to produce values, How it works...
• Array.reduce
  • used, for transforming data / Using Array.reduce to transform data, How to do it..., How it works...
• array members
  • extracting, with destructuring / Extracting array members with destructuring, How it works...
• array of async results
  • collecting, Promise.all used / Using Promise.all to collect an array of async results, How it works...
• arrays
  • combining, with spread operator / Combining arrays with the spread operator, How it works...
• async function
  • promises, creating / Creating promises with an async function, How it works...
• async results
  • using, in Promise chain / Using async results in a Promise chain
• Atomics
  • used, for coordinating shared memory usage / Using Atomics to coordinate the use of shared memory, How to do it..., How it works...
• await keyword
  • using / Awaiting the result of async functions, How it works...

B

• Babel
  • new language features, supporting / Supporting new language features with Babel, How to do it..., How it works...
• Babel Polyfill
  • methods, shimming / Shimming methods with Babel Polyfill, How to do it..., How it works...
• Babel transpiler / How it works...
• behavior
  • adding, mix-ins used / Using mix-ins to add behavior, How it works...
• browsers support modules
  • reference / There's more...
• builders
  • customized instances, assembling with / Assembling customized instances with builders, How to do it..., How it works...

C

• Chrome
  • installing / Installing and configuring - Chrome, How to do it..., How it works...
  • configuring / Installing and configuring - Chrome, How to do it..., How it works...
  • download link / How to do it...
  • SharedArrayBuffers, enabling in / Enabling SharedArrayBuffers in Chrome, How it works...
• class
  • creating / Creating a new class, How to do it..., How it works...
  • methods, defining on / Defining methods on a class, How it works...
  • extending / Extending a class, How to do it..., How it works...
  • passing, as argument / Passing a class as an argument
• class inheritance
  • checking, with Object.getPrototypeOf / Checking class inheritance with Object.getPrototypeOf, How it works...
• composition
  • using / Using composition rather than inheritance to add behavior, How to do it..., How it works...
• constructor arguments
  • properties, assigning with / Assigning properties with constructor arguments, How it works..., Assigning additional properties with constructor arguments, How it works...
• customized instances
  • assembling, with builders / Assembling customized instances with builders, How to do it..., How it works...

D

• data
  • sending, to Web Worker / Sending data to a Web Worker, How it works...
  • transforming, Array.reduce used / Using Array.reduce to transform data, How to do it..., How it works...
  • Map, creating from / Creating a Map from the existing data, How it works...
  • WeakMap, creating from / Creating a WeakMap from existing data  
  • Set, creating from / Creating a Set from existing data, How it works...
  • WeakSet, creating from / Creating a WeakSet from existing data, How it works...
• Dependency Inversion Principle (DIP)
  • reference / How it works...
• design pattern
  • modifying, to fit use cases / Modifying an existing design pattern to fit different use cases, How to do it..., How it works...
  • combining, to fit use cases / Combining existing design patterns to fit different use cases, How to do it..., How it works...
• destructuring
  • values, picking from object / Picking values from an object using destructuring, How it works...
  • array members, extracting / Extracting array members with destructuring, How it works...
• difference
  • finding, between two sets / Finding the difference between two sets

E

• entries
  • deleting, from Map / Setting and deleting entries from Map, How it works...
  • deleting / How it works...
  • deleting, from WeakMap / Setting and deleting entries from WeakMap, How it works...
• enums
  • simulating, Symbol used / Using Symbol to simulate enums, How it works...
• errors
  • handling, when awaiting async function / Handling errors when awaiting an async function, How to do it...
  • handling, thrown inside of Promise.all / Handling errors thrown inside of Promise.all, How to do it..., How it works...

F

• factories
  • instances, replicating / Replicating instances with factories, How to do it..., How it works...
• fallback script tags
  • adding, to load client bundles / Adding fallback script tags to load client bundles, How to do it..., How it works...
• finally
  • simulating, with promise API / Simulating finally with the promise API, How to do it..., How it works...
  • used, for ensuring operation performance / Using finally to ensure an operation is performed, How to do it..., How it works...
• Firefox
  • installing / Installing and configuring - Firefox, How to do it..., How it works...
  • configuring / Installing and configuring - Firefox, How to do it..., How it works...
  • installation link / How to do it...
  • SharedArrayBuffers, enabling in / Enabling SharedArrayBuffers in Firefox, How to do it..., How it works...
• function properties
  • defining, as methods on plain object / Defining function properties as methods on a plain object, How it works...

G

• getters
  • used, for creating read-only properties / Using getters to create read-only properties, How it works...
• Git
  • reference / Getting ready
• global instance
  • creating, Symbol.for used / Using Symbol.for to create a global instance, How it works...

H

• head of array
  • obtaining, rest operator used / Getting the head and tail of array using the rest operator, How it works...
• HTML page
  • creating, that loads ECMAScript module / Creating an HTML page that loads an ECMAScript module, How to do it..., How it works...

I

• imported modules
  • renaming / Renaming imported modules, How to do it..., How it works...
• instances
  • replicating, with factories / Replicating instances with factories, How to do it..., How it works...
  • managing, singleton used / Using a singleton to manage instances, How it works...
• instance type
  • checking, with instanceOf / Checking instance type with instanceOf, How it works...
• intersection, of two sets
  • finding / Finding the intersection of two sets, How to do it..., How it works...
• items
  • adding, in Set / Adding and deleting items from a Set, How it works...
  • deleting, from Set / Adding and deleting items from a Set, How it works...
  • adding, in WeakSet / Adding and deleting items from WeakSet, How it works...
  • deleting, from WeakSet / Adding and deleting items from WeakSet, How it works...

L

• Linux
  • Node.js, installing with NVM / Installing Node.js with NVM – Linux and macOS, How it works...
• local instance
  • creating, Symbol used / Using Symbol to create a local instance, How to do it..., How it works...
• local static file server
  • hosting, SimpleHTTPServer used / Installing Python, using SimpleHTTPServer to host a local static file server, How it works...
• Long Term Support (LTS) / How to do it...

M

• macOS
  • Node.js, installing with NVM / Installing Node.js with NVM – Linux and macOS, How it works...
• Map
  • entries, setting from / Setting and deleting entries from Map
  • entries, deleting from / Setting and deleting entries from Map, How it works...
  • creating, from existing data / Creating a Map from the existing data, How to do it..., How it works...
  • wrapper class, creating for / Creating a class that wraps Map to work with specific complex types, Creating a class that wraps a Set to work with more complex types, How it works...
• Meltdown
  • reference / How it works...
• messages
  • sending, to Web Worker / Sending messages to and from Web Workers, How it works...
  • sending, from Web Workers / Sending messages to and from Web Workers, How it works...
• methods
  • shimming, with Babel Polyfill / Shimming methods with Babel Polyfill, How to do it..., How it works...
  • defining, on class / Defining methods on a class, How it works...
• mix-ins
  • used, for adding behavior / Using mix-ins to add behavior, How it works...
• modules
  • importing / Exporting/importing multiple modules for external use, How to do it..., How it works...
  • exporting / Exporting/importing multiple modules for external use, How to do it..., How it works...
  • nesting, under single namespace / Nesting modules under a single namespace, How to do it..., How it works...
• multiple results
  • awaiting, in series / Awaiting multiple results in a series, How it works...
  • awaiting, concurrently / Awaiting multiple results concurrently, How it works...

N

• non-enumerable property
  • creating, with Object.defineProperty / Creating a non-enumerable property with Object.defineProperty, How it works...

O

• Object.assign
  • used, for adding properties to object / Using Object.assign to add properties to an object, How to do it..., How it works...
• Object.defineProperty
  • read-only props, defining / Defining read-only props with Object.defineProperty, How it works...
  • read-only props, overriding / Overriding read-only props with Object.defineProperty, How it works...
  • non-enumerable property, creating with / Creating a non-enumerable property with Object.defineProperty, How it works...
• Object.entries
  • used, for obtaining iterable property-name pairs / Using Object.entries to get iterable property-name pairs, How it works...
• Object.getPrototypeOf
  • used, for checking class inheritance / Checking class inheritance with Object.getPrototypeOf, How it works...
• Object.is
  • used, for comparing values / Using Object.is to compare two values, How it works...
• objects
  • creating, object structuring used / Creating an object using object structuring, How it works...
  • combining, spread operator used / Using a spread operator to combine objects, How it works...

P

• parent class instance methods
  • overriding / Overriding parent class instance methods, How to do it..., How it works...
• parent class static methods
  • overriding / Overriding parent class static methods, How to do it..., How it works...
• plain object
  • function properties, defining as methods / Defining function properties as methods on a plain object, How it works...
• Promise.all
  • used, for resolving promises / Using Promise.all to resolve multiple promises, How to do it..., How it works...
  • used, for collecting array of async results / Using Promise.all to collect an array of async results, How it works...
• Promise.catch
  • errors, handling / Handling errors with Promise.catch, How it works...
• promise API
  • finally, simulating / How to do it..., How it works...
• Promise chain
  • starting, with Promise.resolve / Starting a Promise chain with Promise.resolve, How to do it...
  • async results, using in / Using async results in a Promise chain
• promises
  • about / Creating and waiting for Promises
  • creating / How to do it..., How it works...
  • waiting for / How to do it..., How it works...
  • results, resolving / Resolving Promise results, How to do it..., How it works...
  • errors, rejecting / Rejecting Promise errors, How it works...
  • chaining / Chaining Promises, How to do it...
  • creating, with async function / Creating promises with an async function, How it works...
  • used, for providing simple interface for worker / Using promises to provide a simple interface for a worker, How to do it..., How it works...
• properties
  • assigning, with constructor arguments / Assigning properties with constructor arguments, How it works..., Assigning additional properties with constructor arguments, How it works...
• Python
  • installing / Installing Python, using SimpleHTTPServer to host a local static file server, How to do it...
  • download link / How to do it...

R

• read-only properties
  • defining, with Object.defineProperty / Defining read-only props with Object.defineProperty, How it works...
  • overriding, with Object.defineProperty / Overriding read-only props with Object.defineProperty, How it works...
  • creating, getters used / Using getters to create read-only properties, How it works...
• rest operator
  • used, for obtaining head of array / Getting the head and tail of array using the rest operator, How it works...
  • used, for obtaining tail of array / Getting the head and tail of array using the rest operator, How it works...

S

• Sets
  • items, deleting from / Adding and deleting items from a Set, How it works...
  • items, adding in / Adding and deleting items from a Set, How it works...
  • reference / How it works...
  • creating, from existing data / Creating a Set from existing data, How it works...
  • difference, finding / Finding the difference between two sets
• setters
  • used, for encapsulating values / Using setters to encapsulate values, How it works...
• SharedArray
  • reading, from multiple Web Workers / Reading SharedArray from multiple Web Workers, How it works...
• SharedArrayBuffer
  • enabling, in Firefox / Enabling SharedArrayBuffers in Firefox, How it works...
  • enabling, in Chrome / Enabling SharedArrayBuffers in Chrome, How it works...
  • creating / Creating SharedArrayBuffer, How to do it..., How it works...
  • sending, to Web Worker / Sending SharedArrayBuffer to a Web Worker, How it works...
• SimpleHTTPServer
  • used, for hosting local static file server / Installing Python, using SimpleHTTPServer to host a local static file server, How it works...
• singleton
  • used, for managing instances / Using a singleton to manage instances, How it works...
• spread operator
  • used, for combining objects / Using a spread operator to combine objects, How it works...
  • used, for combining arrays / Combining arrays with the spread operator, How it works...
• static methods
  • used, for working with instances / Using static methods to work with all instances, How it works...
• steps
  • defining, with template functions / Defining steps with template functions, How to do it..., How it works...
• structure
  • processing, with visitor pattern / Processing a structure with the visitor pattern, How to do it..., How it works...
• super methods
  • calling / Calling super methods, How to do it..., How it works...
• Symbol
  • used, for creating local instance / Using Symbol to create a local instance, How to do it..., How it works...
  • used, for simulating enums / Using Symbol to simulate enums, How it works...
• Symbol.for
  • used, for creating global instance / Using Symbol.for to create a global instance, How it works...

T

• tail of array
  • obtaining, rest operator used / Getting the head and tail of array using the rest operator, How it works...
• template functions
  • steps, defining with / Defining steps with template functions, How to do it..., How it works...
• terminate
  • workers, stopping with / Stopping workers with terminate, How it works...
• throw
  • used, for simulating abstract classes / Using throw to simulate abstract classes, How it works...
• tools
  • used, for analyzing webpack bundles / Using tools to analyze webpack bundles, How it works...

U

• union of two sets
  • finding / Finding the union of two sets, How to do it..., How it works...

V

• valid types
  • reference / How it works...
• values
  • encapsulating, setters used / Using setters to encapsulate values, How it works...
  • producing, Array.map used / Using Array.map to produce values, How it works...
• visitor pattern
  • structure, processing / Processing a structure with the visitor pattern, How to do it..., How it works...

W

• WeakMap
  • entries, setting / Setting and deleting entries from WeakMap, How it works...
  • entries, deleting from / Setting and deleting entries from WeakMap, How it works...
  • reference / How it works...
  • creating, from existing data / Creating a WeakMap from existing data  
  • wrapper class, creating for / Creating a class that uses WeakMap to work with specific complex types
• WeakSet
  • items, deleting from / Adding and deleting items from WeakSet, How it works...
  • items, adding in / Adding and deleting items from WeakSet, How it works...
  • creating, from existing data / Creating a WeakSet from existing data, How it works...
• webpack
  • installing / Installing and configuring webpack, How to do it..., How it works...
  • configuring / Installing and configuring webpack, How to do it..., How it works...
  • reference / How it works...
• webpack bundles
  • analyzing, tools used / Using tools to analyze webpack bundles
• WEBPACK VISUALIZER
  • reference / How it works...
• Web Workers
  • work on separate threads, performing / Performing work on separate threads with Web Workers, How to do it..., How it works...
  • messages, sending to / Sending messages to and from Web Workers, How it works...
  • messages, sending from / Sending messages to and from Web Workers, How it works...
  • data, sending to / Sending data to a Web Worker, How it works...
  • SharedArrayBuffer, sending to / Sending SharedArrayBuffer to a Web Worker, How it works...
  • SharedArray, reading from / How it works...
• Windows
  • Node.js, installing with NVM / Installing Node.js with NVM: Windows, How it works...
• workers
  • stopping, with terminate / Stopping workers with terminate, How it works...
• wrapper class
  • creating, for Map / Creating a class that wraps Map to work with specific complex types, Creating a class that wraps a Set to work with more complex types, How it works...
  • creating, for WeakMap / Creating a class that uses WeakMap to work with specific complex types
• wwebpack bundles
  • analyzing, tools used / How it works...