Index
A
abs method
Absolute/non-negative value of a number
Access and set properties
dot/bracket notation
Architecture property
Arrays
access elements
adding/removing elements
callback function
concat() method
constructor
copying and updating elements
copyWithin() method
count of values
definition
every() method
false condition
fill() method
filter() method
find() method
find
vs
. findIndex
First-In First-Out behavior
forEach() method
from() method
indexOf() and lastIndexOf()
iterable object
Last-In First-Out behavior
length property
literals and instances
loop
do…while
for
for…in
for…of
while
map()
max/min value
multidimensional sorting array
pop() method
properties and methods
push() method
reduce() method
reduce
vs
. reduceRight
regular
vs
. typed array
reverse() method
reverse each word
shift() method
size
slice() method
some() method
sorting
splice() method
spread operator
string conversion
true condition
unique values
unshift() method
values, initialization
Associated arrays
Asynchronous control flow
and promises
SeePromise
definition
Automatic semicolon insertion (ASI)
B
32-Bit integer
bitwise AND (&) operator
bitwise NOT (∼) operator
bitwise OR (|) operator
converting RGB color to hexadecimal, bitwise signed shift (>>, <<) operator
applications
coding
functions
hex2rgb
problem
rgb2hex
creating, editing and testing, bit field flag set
dividing by powers of sign-propagating right shift (>>) operator
examples
multiplying by powers of left shift (<<) operator
problem
signed integers
unsigned integers
zero-fill right shift (>>>) operator
Bitwise operator functions
Block scope
Boolean constructor
Boolean()
coding
if statement/condition statements
ToBoolean internal function
true/false
Bound function (BF)
C
Call stack
camelCasing
Certain date
CHMOD permissions
Classes
constructor function
ECMAScript 5 and ECMAScript 6
extend and super keywords
function expression
getters and setters, ES6
JavaScript
new operator
prototypical inheritance
static methods
Coercion
Command-line tools
Constructors
Const statement
coding
constants declaration without assigning
primitive values
problem
read-only (immutable)
SyntaxError
Coordinated Universal Time (UTC)
Custom function
Levenshtein distance algorithm
padding
ROT13 cypher
truncating
D
Date and time formatting
ECMAScript Internationalization API
getDate() method
IANA time zone database
toLocaleDateString/toLocaleTimeString
Date and time information
dateArray
Date object
constructor parameters
Date.parse()
instances creation
problem
recommendations
Date time and currency
D3 Library and ECMAScript Internationalization API
Double NOT operator
E
ECMAScript 6 (ES6)
Equality operators
bang operator (!)
coding
null values
problem
Errors
callback pattern
creation
rethrow
runtime
throw statement
try/catch/finally
types
user-defined
Events
addEventListener method
capturing, target, and bubbling
custom events
DOMContentLoaded
NodeJS Event Emitter
preventDefault() method
propagation, useCapture property
properties
removeEventListener() method
Expressions
operators
-
--
!=
!==
*
/
%
+
++
==
===
comma
conditional (?)
delete operator
>
>=
logical AND (&&)
logical NOT (!)
logical OR (||)
<
<=
object
property
unary addition (+)
unary subtraction (-)
variable
void
F
Finite number
Fixed amount of digits
Flow control
forEach() method
Functional programming
Functions
anonymous
arrow functions
creating functions inside an object
creation
constructor
declaration
expression
default parameters
executing/calling
object destructuring with parameters
parameters
rest parameters
return a value
spread syntax
super keyword to call methods, parent object
this keyword
arrow functions
bind method
call and apply methods
event handler
global context
JavaScript
object methods
strict mode
window.globalFunction()
Function’s scope
errors
examples
foo() and bing()
global variables and notion of scope
overriding/leaking
ReferenceError
trees
G
Generators
creation
custom iterator
Fibonacci sequence of numbers
function keyword
maintains state
next() method
throw…catch inside and outside
yield keyword
getMonth method
getTime() method
getTimezoneOffset
date objects
max() method
UTC and local time
H
Hex2RGB
HTML5 Date input field
I
Immediately-invoked function expressions (IFFE)
Inclusive number
indexOf() operations
Instanceof operator
Integers
J
JavaScript datatypes
array and assigning and retrieving values
Boolean constructor
Boolean variable, initialized
constructor property
constructors
const statement
date
date object
date string
equality operators
false and true values
function’s scope
instance
let statement
literals
NaN and infinity
null
vs
. undefined
number
constructor
literals
object
object and assigning properties
objects
vs
. arrays
plain object
regular expression literal
returns a value
string
string constructor
template literals
typeof()
value
variable names
var statement
join() method
K
Keys
vs
. values methods
L
Length of a number
Let statement
block scope
coding
problem
var keyword
variables block
Literals
coding
vs
. constructors
data types
object/instance
prototypes
log() method
M
MapReduce
Maps
adding and removing elements
entries method
forEach method
has method
keys method will return MapIterator object
vs
. object
removing all elements
return key and value element
size property
values method
Math.abs() method
Math.floor() function
Math.floor()
vs
. Math.ceil()
Math.max method, highest number
Most Significant Bit (MSB)
Mozilla Developer Network (MDN)
N
NodeJS
Not a Number (NaN)
Null
vs
. undefined variable
Number constructor
Number literals
coding
conversion chart
E notation
floating-point numbers
hard-coded mathematical expressions
integer values
binary
decimal
hexadecimal
octal
numeric representation and manipulation
Number object
Numeral systems
O
Object
child/descendant
copying enumerable values
destructuring
do…while loop
for…in loop
for…of loop
freeze, seal, and preventExtensions methods
hasOwnProperty method
immutable
instance/prototype
modification
Object.assign
Object.create
Object.is method
Object.isPrototypeOf()
Object.setPrototypeOf
testing equality
while loop
Object constructor
vs
. object literal
Object.create
vs
. new operator
Object destructuring
Object.observe
vs
. proxy
Object-oriented programming (OOP)
Object properties
defineProperty method
enumerable
getOwnPropertyNames method
IsEnumerable() method
keys() method
variables
Objects
vs
. arrays
Operators
-
--
!=
!==
*
/
%
+
++
==
===
comma
conditional (?)
delete
>
>=
logical AND (&&)
logical NOT (!)
logical OR (||)
<
<=
object
property
unary addition (+)
unary subtraction (-)
variable
void
Owner property
P, Q
preventDefault() method
Promise
all()
catch()
creation
ECMAScript
event loop task queue
generators
multiple sequence
node-style callbacks
race()
reject()
resolve()
slow operations time out
then()
error catchers
queue
utility function
Prototypal inheritance
class-based inheritance
ES5 and ES6
getShowNetwork
prototype property
Proxy
creation and usage
target and handler
traps
R
Random number generator
Range of dates
Regular expressions
anchors
capture groups
creation
description
flags
logical operator/pipe (|)
lookaheads
match literal and special characters
quantifiers
searching, characters in range
Reverse number
Revocable proxy
revoke() method
RGB2Hex
S
setHours() method
Sets
adding and removing elements
clear method
custom iterator
done property
entries method
forEach method
has method
removing all elements
size property
value property
WeakSet
Sets
vs
. arrays
shift() method
sort() method
split() method
Spread syntax
Square root of a number
String concatenation
vs
. number conversion
String constructor
Strings
contains()
custom function
Levenshtein distance algorithm
padding
ROT13 cypher
truncating
endsWith()
equality
escape codes
for…in
for…of
indexOf()
lastIndexOf()
length determination
localeCompare()
match()
+ operator
repeat()
replace()
search()
single character
slice()
split()
startsWith()
substring
toUpperCase and LowerCase()
trim()
unicode
UTF
CharCode()
charCodeAt()
CodePoint()
codePointAt()
Strings to numbers conversion
coding
implicit conversion
math object
parseInt and parseFloat
problem
radix
unary plus operator
Swapping numbers without temporary variable
Symbols
advantages
call() method
computed property names
creation
derived objects
hasInstance property
hide properties
hint property
Instanceof operator
object properties
override, constructor function
primitive value
string name
Symbol.for() method
Symbol.keyFor() method
Symbol.species property
Symbol.unscopables
toStringTag property
T
Template literals
backticks
characterName
expressions
functions
GeneratorFunction constructor
getToday function
handlebars
line breaks
raw property
update expressions
Template string literals
toString() method
Traps
Two’s complement
typeof operator
U
Universal Unique Identifiers (UUIDs)
User age calculation
UTF
CharCode()
charCodeAt()
CodePoint()
codePointAt()
V
Variable names
camelCasing
constructors
errors
language features and functions
reserved words
rules
var statement
Variable scopes
W, X, Y, Z
WeakSets
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