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QML Global Object

Description of the Qml Global Object.

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QML Global Object▲

The QML JavaScript host environment implements the following host objects and functions. These are built in and can be used from any JavaScript code loaded in QML, without additional imports:

  • The https://: This object is specific to QML, and provides helper methods and properties specific to the QML environment.

  • qsTr(), qsTranslate(), qsTrId(), https://(), https://(), and https://() functions: These functions are specific to QML, and provide translation capabilities to the QML environment.

  • gc() function: This function is specific to QML, and provides a way to manually trigger garbage collection.

  • print() function: This function is specific to QML, and provides a simple way to output information to the console.

  • The console object: This object implements a subset of the http://.

  • https://, DOMException: These objects implement a subset of the http://.

The https://() function cannot be used to modify the global object of a https://. For more information about this, see https://.

XMLHttpRequest▲

The XMLHttpRequest object, which can be used to asynchronously obtain data from over a network.

The XMLHttpRequest API implements the same http:// as many popular web browsers with following exceptions:

  • QML's XMLHttpRequest does not enforce the same origin policy.

Additionally, the responseXML XML DOM tree currently supported by QML is a reduced subset of the http:// API supported in a web browser. The following objects and properties are supported by the QML implementation:

Node

Document

Element

Attr

CharacterData

Text

  • nodeName

  • nodeValue

  • nodeType

  • parentNode

  • childNodes

  • firstChild

  • lastChild

  • previousSibling

  • nextSibling

  • attributes

  • xmlVersion

  • xmlEncoding

  • xmlStandalone

  • documentElement

  • tagName

  • name

  • value

  • ownerElement

  • data

  • length

  • isElementContentWhitespace

  • wholeText

The https:// demonstrates how to use the XMLHttpRequest object to make a request and read the response headers.

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Ce document est disponible sous la licence https:// telle que publiée par la Free Software Foundation.