QML JavaScript Host Environment

Common Base

Like a browser or server-side JavaScript environment, the QML runtime implements the ECMAScript Language Specification standard. This provides access to all of the built-in types and functions defined by the standard, such as Object, Array, and Math. The QML runtime implements the 5th edition of the standard, which is the same edition commonly implemented by browsers.

The standard ECMAScript built-ins are not explicitly documented in the QML documentation. For more information on their use, please refer to the ECMA-262 5th edition standard or one of the many online JavaScript reference and tutorial sites, such as the W3Schools JavaScript Reference (JavaScript Objects Reference section). Many sites focus on JavaScript in the browser, so in some cases you may need to double check the specification to determine whether a given function or object is part of standard ECMAScript or specific to the browser environment. In the case of the W3Schools link above, the JavaScript Objects Reference section generally covers the standard, while the Browser Objects Reference and HTML DOM Objects Reference sections are browser specific (and thus not applicable to QML).