PySide6.QtQml.QJSValueIterator¶

class QJSValueIterator¶

The QJSValueIterator class provides a Java-style iterator for QJSValue .

Details

Warning

This section contains snippets that were automatically translated from C++ to Python and may contain errors.

The QJSValueIterator constructor takes a QJSValue as argument. After construction, the iterator is located at the very beginning of the sequence of properties. Here’s how to iterate over all the properties of a QJSValue :

object = QJSValue()
...
it = QJSValueIterator(object)
while it.hasNext():
    it.next()
    print(it.name(), ": ", it.value().toString())

The next() advances the iterator. The name() and value() functions return the name and value of the last item that was jumped over.

Note that QJSValueIterator only iterates over the QJSValue ‘s own properties; i.e. it does not follow the prototype chain. You can use a loop like this to follow the prototype chain:

obj = ... # the object to iterate over
while obj.isObject():
    it = QJSValueIterator(obj)
    while it.hasNext():
        it.next()
        print(it.name())

    obj = obj.prototype()

Synopsis¶

Methods¶

def __init__()
def hasNext()
def name()
def next()
def operator=()
def value()

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

__init__(value)¶

Parameters:: value – QJSValue

Constructs an iterator for traversing object. The iterator is set to be at the front of the sequence of properties (before the first property).

hasNext()¶

Return type:: bool

Returns true if there is at least one item ahead of the iterator (i.e. the iterator is not at the back of the property sequence); otherwise returns false.

See also

next()

name()¶

Return type:: str

Returns the name of the last property that was jumped over using next() .

See also

value()

next()¶

Return type:: bool

Advances the iterator by one position. Returns true if there was at least one item ahead of the iterator (i.e. the iterator was not already at the back of the property sequence); otherwise returns false.

See also

hasNext() name()

operator=(value)

Parameters:: value – QJSValue
Return type:: QJSValueIterator

Makes the iterator operate on object. The iterator is set to be at the front of the sequence of properties (before the first property).

value()¶

Return type:: QJSValue

Returns the value of the last property that was jumped over using next() .

See also

name()