ECMAScript Reference

This reference contains a list of built-in objects, functions and properties supported by Qt Script. 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)

Constructor Properties

  • Object
  • Function
  • Array
  • String
  • Boolean
  • Number
  • Date
  • RegExp
  • Error
  • EvalError
  • RangeError
  • ReferenceError
  • SyntaxError
  • TypeError
  • URIError

Other Properties

  • Math
  • JSON

Object Objects

Object Constructor

Function Properties

  • getPrototypeOf(O)
  • getOwnPropertyDescriptor(O, P)
  • getOwnPropertyNames(O)
  • create(O [, Properties])
  • defineProperty(O, P, Attributes)
  • defineProperties(O, Properties)
  • keys(O)

Object Prototype Object

Function Properties

  • toString()
  • toLocaleString()
  • valueOf()
  • hasOwnProperty(V)
  • isPrototypeOf(V)
  • propertyIsEnumerable(V)

Function Objects

Function Prototype Object

Function Properties

  • toString()
  • apply(thisArg, argArray)
  • call(thisArg [, arg1 [, arg2, ...]])

Array Objects

Array Constructor

Function Properties

  • isArray(arg)

Array Prototype Object

Function Properties

  • toString()
  • toLocaleString()
  • concat([item1 [, item2 [, ...]]])
  • join(separator)
  • 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])

String Objects

String Constructor

Function Properties

  • fromCharCode([char0 [, char1 [,...]]])

String Prototype Object

Function Properties

  • toString()
  • valueOf()
  • charAt(pos)
  • charCodeAt(pos)
  • concat([string1 [, string2 [, ...]]])
  • indexOf(searchString ,position)
  • lastIndexOf(searchString, position)
  • localeCompare(that)
  • match(regexp)
  • replace(searchValue, replaceValue)
  • search(regexp)
  • slice(start, end)
  • split(separator, limit)
  • substring(start, end)
  • toLowerCase()
  • toLocaleLowerCase()
  • toUpperCase()
  • toLocaleUpperCase()
  • trim()

Boolean Objects

Boolean Prototype Object

Function Properties

  • toString()
  • valueOf()

Number Objects

Number Prototype Object

Function Properties

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

The Math Object

Value Properties

  • E
  • LN10
  • LN2
  • LOG2E
  • LOG10E
  • PI
  • SQRT1_2
  • SQRT2

Function Properties

  • abs(x)
  • acos(x)
  • asin(x)
  • atan(x)
  • atan2(y, x)
  • ceil(x)
  • cos(x)
  • exp(x)
  • floor(x)
  • log(x)
  • max([value1 [, value2 [, ...]]])
  • min([value1 [, value2 [, ...]]])
  • pow(x, y)
  • random()
  • round(x)
  • sin(x)
  • sqrt(x)
  • tan(x)

Date Objects

Date Constructor

Function Properties

  • now()
  • parse(string)
  • UTC(year, month [, date [, hours [, minutes [, seconds [, ms]]]]])

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])
  • setFullYear(year [, month [, date]])
  • setUTCFullYear(year [, month [, date]])
  • toUTCString()
  • toISOString()
  • toJSON()

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]])

© 2023 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.