JavaScript Cheat Sheet

Oct 03, 2017

cheatsheet, Javascript October 03, 2017

We have compiled a list of almost all of the JavaScript functions you will ever need! This is a nice guide to keep on hand when digging into web development with Vanilla JavaScript. Check out our Javascript Cheat Sheet below.

JavaScript Booleans

toSource()	valueOf()
toString()

JavaScript Strings

charAt()	slice()
charCodeAt()	split()
concat()	substr()
fromCharCode()	substring()
indexOf()	toLowerCase()
lastIndexOf()	toUpperCase()
length	toLocaleLowerCase()
localeCompare()	toLocaleUpperCase()
match()	toSource()
replace()	valueOf()
search()

JavaScript Dates

Date()	setMonth()
getDate()	setFullYear()
getDay()	setHours()
getMonth	setMinutes()
getFullYear	setSeconds()
getYear	setMilliseconds()
getHours	setTime()
getMinutes	setUTCDate()
getSeconds	setUTCDay()
getMilliseconds	setUTCMonth()
getTime	setUTCFullYear()
getTimezoneOffset()	setUTCHours()
getUTCDate()	setUTCMinutes()
getUTCDay()	setUTCSeconds()
getUTCMonth()	setUTCMilliseconds()
getUTCFullYear()	toSource()
getUTCHours()	toString()
getUTCMinutes()	toGMTString()
getUTCSeconds()	toUTCString()
getUTCMilliseconds()	toLocaleString()
parse()	UTC()
setDate()	valueOf()

JavaScript Arrays

concat()	slice()
join()	sort()
length	splice()
pop()	toSource()
push()	toString()
reverse()	unshift()
shift()	valueOf()

JavaScript Math

abs()	min()
acos()	NEGATIVE_INFINITY
asin()	PI
atan()	POSITIVE_INFINITY
atan2()	pow()
ceil()	random()
cos()	round()
E	sin()
exp()	sqrt()
floor()	SQRT1_2
LN10	SQRT2
LN2	tan()
log()	toSource()
LOG10E	toExponential()
LOG2E	toFixed()
max()	toPrecision()
MAX_VALUE	toString()
MIN_VALUE	valueOf()
NaN

JavaScript Event Handlers

onabort	onmousedown
onblur	onmousemove
onchange	onmouseout
onclick	onmouseover
ondblclick	onmouseup
ondragdrop	onmove
onerror	onreset
onfocus	onresize
onkeydown	onselect
onkeypress	onsubmit
onkeyup	onunload
onload

JavaScript RegEx

compile()	lastParen
exec()	leftCOntext
global	multiline
ignoreCase	rightContext
input	source
lastIndex	test()
lastMatch

RegEx Pattern Modifiers

g	Global match
i *	Case-insensitive
m *	Multiple lines
s *	Treat string as single line
x *	Allow comments and whitespace in pattern
e *	Evaluate replacement
U *	Ungreedy pattern

RegEx Syntax

^	Start of string
$	End of string
.	Any single character
(a\|b)	a or b
(...)	Group section
[abc]	In range (a, b or c)
[^abc]	Not in range
\s	White space
a?	Zero or one of a
a*	Zero or more of a
a*?	Zero or more, ungreedy
a+	One or more of a
a+?	One or more, ungreedy
a{3}	Exactly 3 of a
a{3,}	3 or more of a
a{,6}	Up to 6 of a
a{3,6}	3 to 6 of a
a{3,6}?	3 to 6 of a, ungreedy
\	Escape character
[:punct:]	Any punctuation symbol
[:space:]	Any space character
[:blank:]	Space or tab

admin API array async Birthday BookGuide Button bytes c# c# enum to int c# int to enum c# int to string c# iterate dictionary c# loop through dictionary c# outofmemoryexception c# run as admin C++ cast cheatsheet CLASSPATH compare convert int to string Dad Dictionary editor enum exception exit Fathers Day for for loop foreach generic Gift gift guide Git global Guide HTML INNER JOIN int iterate Java java.lang.OutOfMemoryError Javascript jQuery JSON KnockoutJS list loop MERGE nested loop outofmemory PHP PHP Redirect PowerShell programmer gift programmer mugs programmer shirts programmer stickers python python bytes to string python external command python for loop python int to string quit random Redirect repr() shell command SQL SQL Server STDIN STDOUT str() string switch system.outofmemoryexception c# systemoutofmemory type UPDATE variables vi vim _