List of JavaScript Objects and Functions

This reference contains a list of objects, functions and properties supported by the QML engine. For a detailed description, see the ECMA-262 specification.

The Global Object

Value Properties

NaN
Infinity
undefined

Function Properties

eval(x)
parseInt(string, radix)
parseFloat(string)
isNaN(number)
isFinite(number)
decodeURI(encodedURI)
decodeURIComponent(encodedURIComponent)
encodeURI(uri)
encodeURIComponent(uriComponent)
escape(string)
unescape(string)

Constructor Properties

Object
Function
Array
ArrayBuffer
String
Boolean
Number
DataView
Date
Promise
RegExp
Map
WeakMap
Set
WeakSet
SharedArrayBuffer
Symbol
Error
EvalError
RangeError
ReferenceError
SyntaxError
TypeError
URIError

Other Properties

Atomics
Math
JSON
Reflect
Proxy

The Object Object

Object Constructor

Function Properties

getPrototypeOf(O)
setPrototypeOf(O, P)
getOwnPropertyDescriptor(O, P)
getOwnPropertyDescriptors(O)
getOwnPropertyNames(O)
getOwnPropertySymbols(O)
assign(O [, Properties])
create(O [, Properties])
defineProperty(O, P, Attributes)
defineProperties(O, Properties)
entries(O)
is(V1, V2)
keys(O)
values(O)
seal(O)
isSealed(O)
freeze(O)
isFrozen(O)
preventExtensions(O)
isExtensible(O)

Object Prototype

Function Properties

toString()
toLocaleString()
valueOf()
hasOwnProperty(V)
isPrototypeOf(V)
propertyIsEnumerable(V)
__defineGetter__(P, F)
__defineSetter__(P, F)

Function Objects

Function Prototype

Function Properties

toString()
apply(thisArg, argArray)
call(thisArg [, arg1 [, arg2, ...]])
bind((thisArg [, arg1 [, arg2, …]])
[Symbol.hasInstance](O)

Array Objects

Array Prototype Object

Function Properties

toString()
toLocaleString()
concat([item1 [, item2 [, ...]]])
copyWithin([item1 [, item2 [, ...]]])
entries()
fill(item [, index1 [, index2]])
join(separator)
find(callbackfn [, thisArg]) // ECMAScript 6: Added in Qt 5.9
findIndex(callbackfn [, thisArg]) // ECMAScript 6: Added in Qt 5.9
includes(item)
keys()
pop()
push([item1 [, item2 [, ...]]])
reverse()
shift()
slice(start, end)
sort(comparefn)
splice(start, deleteCount[, item1 [, item2 [, ...]]])
unshift([item1 [, item2 [, ...]]])
indexOf(searchElement [, fromIndex])
lastIndexOf(searchElement [, fromIndex])
every(callbackfn [, thisArg])
some(callbackfn [, thisArg])
forEach(callbackfn [, thisArg])
map(callbackfn [, thisArg])
filter(callbackfn [, thisArg])
reduce(callbackfn [, initialValue])
reduceRight(callbackfn [, initialValue])
values()
[Symbol.iterator]()

String Objects

String Prototype Object

Function Properties

toString()
valueOf()
charAt(pos)
charCodeAt(pos)
codePointAt(pos)
concat([string1 [, string2 [, ...]]])
endsWith(searchString [, endPosition ]) // ECMAScript 6: Added in Qt 5.8
includes(searchString [, position ]) // ECMAScript 6: Added in 5.8
indexOf(searchString ,position)
lastIndexOf(searchString, position)
localeCompare(that)
match(regexp)
normalize()
padEnd(length [, string])
padStart(length [, string])
repeat(count) // ECMAScript 6: Added in Qt 5.9
replace(searchValue, replaceValue)
search(regexp)
slice(start, end)
split(separator, limit)
startsWith(searchString [, position ]) // ECMAScript 6: Added in Qt 5.8
substr(start, length)
substring(start, end)
toLowerCase()
toLocaleLowerCase()
toUpperCase()
toLocaleUpperCase()
trim()
[Symbol.iterator]()

Additionally, the QML engine adds the following functions to the String prototype:

arg()

Boolean Objects

Boolean Prototype Object

Function Properties

toString()
valueOf()

Number Objects

Number Prototype Object

Function Properties

toString(radix)
toLocaleString()
valueOf()
toFixed(fractionDigits)
toExponential(fractionDigits)
toPrecision(precision)

Additionally, the QML engine adds the following functions to the Number prototype:

The Number Object

Value Properties

NaN
NEGATIVE_INFINITY
POSITIVE_INFINITY
MAX_VALUE
MIN_VALUE
EPSILON // ECMAScript 6: Added in Qt 5.8
MAX_SAFE_INTEGER
MIN_SAFE_INTEGER

Function Properties

isFinite(x) // ECMAScript 6: Added in Qt 5.8
isInteger(x)
isSafeInteger(x)
isNaN(x) // ECMAScript 6: Added in Qt 5.8

The Math Object

Value Properties

E
LN10
LN2
LOG2E
LOG10E
PI
SQRT1_2
SQRT2

Function Properties

abs(x)
acos(x)
acosh(x)
asin(x)
asinh(x)
atan(x)
atanh(x)
atan2(y, x)
cbrt(x)
ceil(x)
clz32(x)
cos(x)
cosh(x)
exp(x)
expm1(x)
floor(x)
fround(x)
hypot(x, y)
imul(x, y)
log(x)
log10(x)
log1p(x)
log2(x)
max([value1 [, value2 [, ...]]])
min([value1 [, value2 [, ...]]])
pow(x, y)
random()
round(x)
sign(x) // ECMAScript 6: Added in Qt 5.8
sin(x)
sinh(x)
sqrt(x)
tan(x)
tanh(x)
trunc(x)

Date Objects

Date Prototype Object

Function Properties

toString()
toDateString()
toTimeString()
toLocaleString()
toLocaleDateString()
toLocaleTimeString()
valueOf()
getTime()
getFullYear()
getUTCFullYear()
getMonth()
getUTCMonth()
getDate()
getUTCDate()
getDay()
getUTCDay()
getHours()
getUTCHours()
getMinutes()
getUTCMinutes()
getSeconds()
getUTCSeconds()
getMilliseconds()
getUTCMilliseconds()
getTimeZoneOffset()
setTime(time)
setMilliseconds(ms)
setUTCMilliseconds(ms)
setSeconds(sec [, ms])
setUTCSeconds(sec [, ms])
setMinutes(min [, sec [, ms]])
setUTCMinutes(min [, sec [, ms]])
setHours(hour [, min [, sec [, ms]]])
setUTCHours(hour [, min [, sec [, ms]]])
setDate(date)
setUTCDate(date)
setMonth(month [, date])
setUTCMonth(month [, date])
setYear(year)
setFullYear(year [, month [, date]])
setUTCFullYear(year [, month [, date]])
toUTCString()
toGMTString()
toISOString()
toJSON()
[Symbol.toPrimitive](hint)

Additionally, the QML engine adds the following functions to the Date prototype:

RegExp Objects

RegExp Prototype Object

Function Properties

exec(string)
test(string)
toString()

Error Objects

Error Prototype Object

Value Properties

name
message

Function Properties

toString()

The JSON Object

Function Properties

parse(text [, reviver])
stringify(value [, replacer [, space]])

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Licensed under the GNU Free Documentation License, Version 1.3.
https://doc.qt.io/qt-5.12/qtqml-javascript-functionlist.html