diff options
Diffstat (limited to 'doc/src/declarative/javascriptblocks.qdoc')
| -rw-r--r-- | doc/src/declarative/javascriptblocks.qdoc | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/doc/src/declarative/javascriptblocks.qdoc b/doc/src/declarative/javascriptblocks.qdoc index 8ffe58c..7c0570e 100644 --- a/doc/src/declarative/javascriptblocks.qdoc +++ b/doc/src/declarative/javascriptblocks.qdoc @@ -47,7 +47,7 @@ QML encourages building UIs declaratively, using \l {Property Binding} and the composition of existing \l {QML Elements}. To allow the implementation of more advanced behavior, QML integrates tightly with imperative JavaScript code. -The JavaScript environment provided by QML is stricter than that in a webbrowser. +The JavaScript environment provided by QML is stricter than that in a web browser. In QML you cannot add, or modify, members of the JavaScript global object. It is possible to do this accidentally by using a variable without declaring it. In QML this will throw an exception, so all local variables should be explicitly @@ -66,7 +66,7 @@ them. \code Item { function factorial(a) { - a = Integer(a); + a = parseInt(a); if (a <= 0) return 1; else @@ -104,12 +104,12 @@ Item { } \endcode -Both relative and absolute JavaScript URLs can be imported. In the case of a -relative URL, the location is resolved relative to the location of the -\l {QML Document} that contains the import. If the script file is not accessible, -an error will occur. If the JavaScript needs to be fetched from a network +Both relative and absolute JavaScript URLs can be imported. In the case of a +relative URL, the location is resolved relative to the location of the +\l {QML Document} that contains the import. If the script file is not accessible, +an error will occur. If the JavaScript needs to be fetched from a network resource, the QML document has a "Loading" -\l {QDeclarativeComponent::status()}{status} until the script has been +\l {QDeclarativeComponent::status()}{status} until the script has been downloaded. Imported JavaScript files are always qualified using the "as" keyword. The @@ -143,7 +143,7 @@ stateless library through the use of a pragma, as shown in the following example .pragma library function factorial(a) { - a = Integer(a); + a = parseInt(a); if (a <= 0) return 1; else @@ -160,7 +160,7 @@ parameters. \section1 Running JavaScript at Startup It is occasionally necessary to run some imperative code at application (or -component instance) "startup". While it is tempting to just include the startup +component instance) startup. While it is tempting to just include the startup script as \e {global code} in an external script file, this can have severe limitations as the QML environment may not have been fully established. For example, some objects might not have been created or some \l {Property Binding}s may not have been run. @@ -180,7 +180,7 @@ Rectangle { } \endcode -Any element in a QML file - including nested elements and nested QML component +Any element in a QML file - including nested elements and nested QML component instances - can use this attached property. If there is more than one \c onCompleted() handler to execute at startup, they are run sequentially in an undefined order. |