function runTest() {
let range = document.createRange();
var c = $("d").firstChild; var a = $("d").nextSibling;
range.setStart(c, 1);
range.setEnd(c, 3);
is(range.startContainer, c, "Unexpected start container");
is(range.startOffset, 1, "Unexpected start offset");
is(range.endContainer, c, "Unexpected end container");
is(range.endOffset, 3, "Unexpected end offset");
is(range.toString(), "bc", "Unexpected range serialization");
let shadow = d.shadowRoot.firstChild;
// Should collapse the range, because can't determine order
range.setEnd(shadow, 2);
is(range.startContainer, shadow, "Unexpected collapsed start container");
is(range.startOffset, 2, "Unexpected collapsed start offset");
is(range.endContainer, shadow, "Unexpected collapsed end container");
is(range.endOffset, 2, "Unexpected collapsed end offset");
is(range.toString(), "", "Unexpected collapsed range serialization");
range.setEnd(a, 2);
range.setStart(a, 0);
is(range.startContainer, a, "Unexpected start container after");
is(range.startOffset, 0, "Unexpected start offset after");
is(range.endContainer, a, "Unexpected end container after");
is(range.endOffset, 2, "Unexpected end offset after");
is(range.toString(), "de", "Unexpected range serialization after");
shadow = d.shadowRoot.lastChild;
// Collapses because one endpoint is anonymous from point of view of
// the other.
range.setStart(shadow, 1);
is(range.startContainer, shadow, "Unexpected newly collapsed start container");
is(range.startOffset, 1, "Unexpected newly collapsed start offset");
is(range.endContainer, shadow, "Unexpected newly collapsed end container");
is(range.endOffset, 1, "Unexpected newly collapsed end offset");
is(range.toString(), "", "Unexpected collapsed range serialization");
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.