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A. Index

Symbol

• !x
• ++x
• x++
• +x
• —x
• x—
• -x
• x && y
• x & y
• x + y
• x - y
• x / y
• x << y
• x === y
• x >>> y
• x >> y
• x ** y
• x * y
• x ^ y
• x ¦ y
• x ¦¦ y
• x ٪ y
• /«pattern»/«flags» (regular expression literal)
• =
• c ? t : e
• proto

• ~x
  A

• accessor (object literal)

• addition
• AMD module
• anonymous function expression
• argument
• argument vs. parameter
• Array
• Array hole
• Array index
• Array literal
• Array, multidimensional
• Array, roles of an
• Array-destructuring
• Array-like object
• ArrayBuffer
• arrow function
• ASI (automatic semicolon insertion)
• assert (module)
• assertion
• assignment operator
• async
• async function
• async-await
• asynchronous programming
• automatic semicolon insertion (ASI)

• await (async function)
  B

• big endian

• binary integer literal
• binding (variable)
• bitwise And
• bitwise Not
• bitwise Or
• bitwise Xor
• boolean
• Boolean()
• bound variable

• break
  C

• call stack

• callback (asynchronous pattern)
• callback function
• camel case
• catch
• class
• class
• class declaration
• class definition
• class expression
• class, mixin
• classes, private data for
• closure
• code point
• code unit
• coercion
• CommonJS module
• comparing by identity
• comparing by value
• computed property key
• concatenating strings
• conditional operator
• console
• console.error()
• console.log()
• const
• constant
• constructor function (role of an ordinary function)
• continue
• copy object deeply

• copy object shallowly
  D

• dash case

• DataView
• date
• date time format
• decimal floating point literal
• decimal integer literal
• decrementation operator (prefix)
• decrementation operator (suffix)
• deep copy of an object
• default export
• default value (destructuring)
• default value (parameter)
• delete
• deleting a property
• destructuring
• destructuring an Array
• destructuring an object
• dictionary (role of an object)
• direct method call
• dispatched method call
• divided by operator
• division
• do-while
• dynamic this

• dynamic vs. static
  E

• Ecma

• ECMA-262
• ECMAScript
• ECMAScript module
• Eich, Brendan
• endianness (Typed Arrays)
• equality operator
• ES module
• escaping HTML
• evaluating an expression
• event (asynchronous pattern)
• event loop
• exception
• exercises, getting started with
• exponentiation
• export
• export default
• export, default
• export, named
• expression
• extends
• external iteration

• extracting a method
  F

• false

• falsiness
• falsy
• finally
• flags (regular expression)
• Float32Array
• Float64Array
• floating point literal
• for
• for-await-of
• for-in
• for-of
• free variable
• freezing an object
• fulfilled (Promise state)
• function declaration
• function expression, anonymous
• function expression, named
• function, arrow
• function, hoisting a
• function, ordinary
• function, roles of an ordinary
• function, specialized

• function*
  G

• garbage collection

• generator, synchronous
• getter (object literal)
• global object
• global variable
• GMT vs. UTC

• grapheme cluster
  H

• heap

• hexadecimal integer literal
• hoisting
• hoisting a function

• hole in an Array
  I

• identifier

• identity of an object
• if
• import()
• in
• incrementation operator (prefix)
• incrementation operator (suffix)
• index of an Array
• Infinity
• instanceof
• instanceof
• Int16Array
• Int32Array
• Int8Array
• integer
• integer, safe
• internal iteration
• iterable (synchronous)
• iteration, external
• iteration, internal
• iteration, synchronous

• iterator (synchronous)
  J

• JSON (data format)

• JSON (namespace object)
  K

• kebab case

• keyword
  L

• label

• left shift operator
• let
• lexical this
• listing properties
• little endian
• logical And
• logical Not

• logical Or
  M

• Map

• Map
• Map vs. object
• Math (namespace object)
• method
• method (object literal)
• method (role of an ordinary function)
• method call, direct
• method call, dispatched
• method, extracting a
• minus operator (binary)
• minus operator (unary)
• mixin class
• module specifier
• module, AMD
• module, CommonJS
• multidimensional Array
• multiple return values

• multiplication
  N

• named export

• named function expression
• named parameter
• NaN
• null
• number

• Number()
  O

• object

• object literal
• object vs. Map
• object vs. primitive value
• Object()
• object, copy deeply
• object, copy shallowly
• object, freezing an
• object, identity of an
• object, roles of an
• object-destructuring
• Object.is()
• octal integer literal
• ordinary function

• ordinary function, roles of an
  P

• parameter

• parameter default value
• parameter vs. argument
• passing by identity
• passing by value
• pattern (regular expression)
• pending (Promise state)
• plus operator (binary)
• plus operator (unary)
• primitive value
• primitive value vs. object
• private data for classes
• Promise
• Promise, states of a
• properties, listing
• property (object)
• property attribute
• property descriptor
• property key
• property key, computed
• property key, quoted
• property name
• property symbol
• property value shorthand
• property, deleting a
• prototype
• prototype chain

• publicly known symbol
  Q

• quizzes, getting started with

• quoted property key
  R

• real function

• real function (role of an ordinary function)
• receiver
• record (role of an object)
• RegExp
• regular expression
• regular expression literal
• rejected (Promise state)
• remainder operator
• REPL
• reserved word
• rest element (Array-destructuring)
• rest parameter (function call)
• rest property (object-destructuring)
• return values, multiple
• roles of an Array
• roles of an object
• roles of an ordinary function

• run-to-completion semantics
  S

• safe integer

• scope of a variable
• script
• sequence (role of an Array)
• Set
• Set
• setter (object literal)
• settled (Promise state)
• shadowing
• shallow copy of an object
• signed right shift operator
• snake case
• specialized function
• specifier, module
• spreading (…) into a function call
• spreading into an Array literal
• spreading into an object literal
• statement
• states of a Promise
• static
• static vs. dynamic
• strict mode
• string
• String()
• subclass
• subtraction
• switch
• symbol
• symbol, publicly known
• synchronous generator
• synchronous iterable
• synchronous iteration
• synchronous iterator

• syntax
  T

• tagged template

• task queue
• TC39
• TC39 process
• TDZ (temporal dead zone)
• Technical Committee 39
• template literal
• temporal dead zone
• ternary operator
• this
• this, dynamic
• this, lexical
• this, pitfalls of
• this, values of
• throw
• time value
• times operator
• to the power of operator
• true
• truthiness
• truthy
• try
• tuple (role of an Array)
• type
• type hierarchy
• Typed Array

• typeof
  U

• Uint16Array

• Uint32Array
• Uint8Array
• Uint8ClampedArray
• undefined
• underscore case
• Unicode
• unit test
• unsigned right shift operator
• UTC vs. GMT
• UTF-16

• UTF-8
  V

• variable, bound

• variable, free

• variable, scope of a
  W

• WeakMap

• WeakMap
• WeakSet
• WeakSet
• Web Worker
• while

• wrapper types (for primitive types)
  Y

• yield (synchronous generator)

• yield* (synchronous generator)