Microsoft JScript 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 Glossary 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ドル...9ドル
Regular Expression
global, ignorecase, lastIndex, source
compile(pattern), exec(str), test(str)

Operators

Dates and Time

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

See:

/techref/language/html/ajax.htm AJAX: Asynchronous JavaScript And XHTML +
The Zen of JavaScript

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