diff options
| author | Aurindam Jana <aurindam.jana@nokia.com> | 2012-01-17 12:37:07 +0100 |
|---|---|---|
| committer | Qt by Nokia <qt-info@nokia.com> | 2012-01-24 14:11:52 +0100 |
| commit | b514fecbeae6a4fed9e593ea6405dbeec7fe7883 (patch) | |
| tree | 05c6dd3f6407a715f6ad482eac9f54a2bcc2b507 /doc | |
| parent | 47a5c708bf4e555cb8febef583f32c99f7d8ea1e (diff) | |
Console API: Add console.assert
console.assert tests if an expression is true. If it is false,
it writes a message to the console and prints the JavaScript
stack trace at that point.
Change-Id: I5487552cb8a947e1947914166834e0bdedba3354
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/src/declarative/qdeclarativedebugging.qdoc | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/doc/src/declarative/qdeclarativedebugging.qdoc b/doc/src/declarative/qdeclarativedebugging.qdoc index c59952dafc..49fe224a8c 100644 --- a/doc/src/declarative/qdeclarativedebugging.qdoc +++ b/doc/src/declarative/qdeclarativedebugging.qdoc @@ -49,6 +49,19 @@ The output is generated using the qDebug, qWarning, qCritical methods in C++ \hint Setting the environment variable QML_CONSOLE_EXTENDED also prints the source code location of the call. +\section2 Assert + +\c console.assert tests that an expression is true. If not, it will write an optional message +to the console and print the stack trace. + +\qml +function f() { + var x = 12 + console.assert(x == 12, "This will pass"); + console.assert(x > 12, "This will fail"); +} +\endqml + \section2 Timer \c console.time and console.timeEnd log the time (in milliseconds) that was spent between |