JScript / JavaScript Features

Tutorial. The oxherders guide is more compact. VisiBone^ has more examples.
Contents Online IDE
Scripting Runtime objects
Document Object Model		 non-ecma features are presented with a grey background
Also: HTML Scripting DOM		 Extensions that may be added by the user are presented with a light yellow background Items related to internet browser scripting and document object models are presented with a light blue background
Control flow Assignments / Declarations
for ( init ; test ; inc ) stmt
for (var in [obj | ary]) stmt
if (cond ) stmt [else stmt] (cond ? stmt : stmt )
return [exp]
while ( exp ) stmt
&&, ||, break, continue		 do stmt while ( exp )
label : stmt
switch ( exp ) {
case label : stmt ; [ case label : stmt ; ...]
[break;]
default : stmt ; }
[static] var | let | const name [ = exp ];
Assign (=) eg: variabl e = exp;
Compound Assign (Operator=) eg: variable += exp;
variable = new ObjectType [(arguments)]
variable = new function ( "parameters", "stmt" )
this.property
with ( obj ) stmt
Arrays Constants/Literals
new Array([size|elem[,elem]]) ary.length
ary.join(seperator) str.split(regExp)
ary.reverse()
ary.sort([sortFunc]) ary.map([mapFunc])
for...in
[a, b, c] = ary		 ary1.concat(ary2) ary1.slice(start,[end]) ary1.splice(start[,length][,elements])
VBArray: toArray, getItem,
dimensions, lbound, ubound
Enumerator: atEnd, item, moveFirst, moveNext
array.At(index)
array.Max(args)
Boolean:
 true: object, non-empty string, non zero
 false: 0, null, NaN, undefined, empty string
Numbers: MAX_VALUE, MIN_VALUE, NaN, NEGATIVE_INFINITY, POSITIVE_INFINITY,Infinity
Math.PI,Math.E
Numbers
Math object: abs, ceil, floor, max, min, random, round, acos, asin, atan, atan2, cos, exp, log, pow, sin, sqrt, tan, E, LN2, LN10, LOG2E, LOG10E, PI, SQRT1_2, SQRT2
parseInt(numstr [, radix]) parseFloat(numstr)
isFinite(num)
isNaN(num)		 formatNumber | formatPercent | formatCurrency  (num, decs, zeros, parens, commas)
Object Creation www.crockford.com/javascript/private.html Document Object
new { Array | Boolean | Date | Function |  Global | Math | Number | Object | String } [(arguments)]
obj.constructor  obj.prototype
obj.toString() obj.valueOf() obj.typeOf(exp) obj.this
obj_copy = JSON.parse(JSON.stringify(obj_to_copy)) 1 2
elementFromPoint(x,y)
getElementById(sIDValue)
getElementsByName(sNameValue)
getElementsByTagName(sTagName)
getElementsByClass(searchClass, node, tag)
Strings see also User defined functions Regular Expressions Syntax
String object str.length
str.substr(start [, length ]) str.substring(start, end)
str.charAt(idx) str.charCodeAt(idx) String.fromCharCode(code [, code])
str.indexOf(substr, start) str.lastIndexOf(substr, start)
str.split(regExp) ary.join(seperator)
toLowerCase, toUpperCase
escape, unescape		 concat, slice
match, replace, search
anchor, big, blink, bold, fixed, fontcolor, fontsize, italics, link, small, strike, sub, sup
formatNumber, formatPercent, formatCurrency, formatDateTime
LTrim, RTrim, Trim, Len, Left, Right, Mid, inStr
RegExp
index, input ($_), lastIndex, lastMatch ($&), lastParen ($+), leftContext ($'), multiline ($*), rightContext ($'), $1...$9
Regular Expression
global, ignorecase, lastIndex, source
compile(pattern), exec(str), test(str)
Operators
Addition (+), Subtraction (-)
Modulus arithmetic (%)
Multiplication (*), Division (/)
Negation (-)
Bitwise And (&), Or (|), Not (~), Xor (^)
Bitwise Left Shift (<<), Shift Right (>>)
Unsigned Shift Right (>>>)
Decrement (--), Increment (++)		 Equality (==), Inequality (!=)
Less Than (<), Less Than or Equal To (<=)
Greater Than (>), Greater Than or Equal To (>=)
 Logical And(&&), Or (||), Not (!)
Conditional (?:)
Comma (,)
delete, typeOf, void
Dates and Time
Date object: toGMTString, toLocaleString, toUTCString, parse, UTC, getDay, getUTCDay,
getDate, getFullYear, getMonth, getYear, getUTCDate, getUTCFullYear, getUTCMonth,
setDate, setFullYear, setMonth, setYear, setUTCDate, setUTCFullYear, setUTCMonth,
addToDate(date,hours,minutes)
getHours, getMilliseconds, getMinutes, getSeconds, getTime, getUTCHours, getUTCMilliseconds, getUTCMinutes, getUTCSeconds, getTimezoneOffset,
setHours, setMilliseconds, setMinutes, setSeconds, setTime, setUTCHours, setUTCMilliseconds, setUTCMinutes, setUTCSeconds,

timeoutID=setTimeout(action,msec)
Function Creation ^ Global Functions
function name( arguments ) stmt
var name = function ( arguments ) stmt
var name = new Function ( arguments, stmt )
var name = ( args ) => expr
var name = ( args ) => { stmt }
return, length, prototype, constructor
caller
Global
escape, unescape
eval
isFinite, isNaN
parseInt, parseFloat
Comments Input / Output 3D^
/*...*/ or // event: .clientX,.clientY,
alert, document.write, window.status
ajax

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