The document is a comprehensive cheat sheet for JavaScript in HTML, covering key concepts such as variables, data types, operators, functions, loops, and DOM manipulation. It includes syntax examples and methods for strings, numbers, and events, along with common JavaScript errors. Additionally, it provides links to further resources for more detailed information.

1. JavaScript in an HTML Page
CHEAT SHEET
<script type="text/javascript">
//JS code goes here
</script>
Call an External JavaScript
File
<script src="myscript.js">
</script>
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Including Comments
Single-line comments: //
Multi-line comments : /* and */
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Variables
var
const
let
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D e s i g n b y a n y t h i n g p r o g r a m m i n g . c o m

2. Data Types
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Objects
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strings
numbers
booleans
undefined
ull.
var person = {
firstName:"John",
lastName:"Doe",
age:20,
nationality:"German"
};
Arrays
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Array Methods
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var fruit = [
"Banana",
"Apple",
"Pear"];
var fruit = ["Banana", "Apple",
"Pear"];
OR
concat()
indexOf()
join()
lastIndexOf()
pop()
push()
reverse()
shift()
slice()
sort()
splice()
toString()
unshift()
valueOf()
D e s i g n b y a n y t h i n g p r o g r a m m i n g . c o m

3. Operators Operators
Basic Operators Basic Operators
+ — Addition
- — Subtraction
* — Multiplication
/ — Division
(...) — Grouping operator,
% — Modulus (remainder )
++ — Increment numbers
-- — Decrement numbers
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Operators Operators
Comparison Operators
== — Equal to
=== — Equal value and equal type
!= — Not equal
!== — Not equal value or not equal type
> — Greater than
< — Less than
>= — Greater than or equal to
<= — Less than or equal to
? — Ternary operator
Logical Operators
&& — Logical and
|| — Logical or
! — Logical not
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D e s i g n b y a n y t h i n g p r o g r a m m i n g . c o m

4. Operators Functions
Outputting Data Global Functions
Bitwise Operators
& — AND statement
| — OR statement
~ — NOT
^ — XOR
<< — Left shift
>> — Right shift
>>> — Zero fill right shift
function name(parameter1, parameter2,
parameter3) {
// what the function does
}
alert()
confirm()
console.log()
document.write()
prompt()
decodeURI()
decodeURIComponent()
encodeURI()
encodeURIComponent()
eval()
isFinite()
isNaN()
D e s i g n b y a n y t h i n g p r o g r a m m i n g . c o m

5. Loops Conditional Statement
Strings Strings
For
While
Do While
Break
Continue
If Statement
If...Else Statement
Switch Case**
Escape Characters
' — Single quote
" — Double quote
— Backslash
b — Backspace
f — Form feed
Escape Characters
n — New line
r — Carriage return
t — Horizontal tabulator
v — Vertical tabulator
D e s i g n b y a n y t h i n g p r o g r a m m i n g . c o m

6. String Methods String Methods
Numbers Numbers
charAt()
charCodeAt()
concat()
fromCharCode()
indexOf()
lastIndexOf()
match()
replace()
search()
Slice()
Split()
substr()
substring()
toLowerCase()
toUpperCase()
Number Properties
MAX_VALUE
MIN_VALUE
NaN
NEGATIVE_INFINITY
POSITIVE_INFINITY
Number Methods
toExponential()
toFixed()
toPrecision()
toString()
valueOf()
D e s i g n b y a n y t h i n g p r o g r a m m i n g . c o m

7. Pulling Date and Time
Values
Pulling Date and Time
Values
getDate())
getDay()
getFullYear()
getHours()
getMilliseconds()
getMinutes()
getMonth()
getSeconds()
getTime()
getUTCDate()
parse()
Set Part of a Date DOM
setDate()
setFullYear()
setHours()
setMilliseconds()
setMinutes()
setMonth()
setSeconds()
setTime
DOM Properties
attributes()
baseURI()
childNodes()
firstChild()
lastChildnext()
Siblingnode()
Namenode()
D e s i g n b y a n y t h i n g p r o g r a m m i n g . c o m

8. DOM DOM
DOM DOM
DOM Methods
appendChild()
cloneNode()
compareDocumentPosition()
getFeature()
hasAttributes()
hasChildNodes()
insertBefore()
DOM Methods
isDefaultNamespace()
isEqualNode()
isSameNode()
isSupported()
lookupNamespaceURI()
lookupPrefix()
normalize()
Element Methods
getAttribute()
getAttributeNS()
getAttributeNode()
getAttributeNodeNS()
getElementsByTagName()
Element Methods
getElementsByTagNameNS()
hasAttribute()
hasAttributeNS()
removeAttribute()
removeAttributeNS()
removeAttributeNod()
esetAttribute()
D e s i g n b y a n y t h i n g p r o g r a m m i n g . c o m

9. Window Properties Window Methods
alert()
blur()
clear Interval()
clear Timeout()
confirm()
focus()
moveBy()
moveToprint()
Events Events
onkeydown()
onkeypress()
onkeyup()
closed()
defaultStatus()
document()
frames()
history()
innerHeight()
innerWidth()
onclick()
oncontextmenu()
ondblclick()
onmousedown()
onmouseenter()
onmouseleave()
onmousemove()
onmouseover()
Mouse Event Keyboard Event
D e s i g n b y a n y t h i n g p r o g r a m m i n g . c o m

10. Frame Form
onabort
onbeforeunload
onerror
onhashchange
onload
onpagehide
onpageshow
onscroll
onblur
onchange
onfocus
onfocusin
onfocusout
oninput
oninvalid
onreset
onsearch
Media Animation
onabort
oncanplay
oncanplaythrough
ondurationchange
onended
onerror
onloadeddata
animationend
animationiteration
animationstart
D e s i g n b y a n y t h i n g p r o g r a m m i n g . c o m

11. Errors Others
Others Others
try
catch
throw
finally
transitionend
onmessage
onoffline
ononline
onpopstate
onshow
onstorage
ontoggle
onwheel
ontouchcancel
ontouchend
ontouchmoveo
ntouchstart
EvalError
RangeError
ReferenceError
SyntaxError
TypeError
URIError
D e s i g n b y a n y t h i n g p r o g r a m m i n g . c o m

12. Visit our Webpage for
more cheats
https://www.anythingprogramming.com