bookmarks.getSubTree()
method asynchronously retrieves a
bookmarks.BookmarkTreeNode
, given its ID.
If the item is a folder, you can access all its descendants recursively using its
children
property and the
children
property of its descendants, if they are themselves folders.
This is an asynchronous function that returns a
Promise
.
var gettingSubTree = browser.bookmarks.getSubTree(
id
// string
)
id
A
string
specifying the ID of the root of the subtree to retrieve.
A
Promise
that will be fulfilled with an array containing a single object, a
bookmarks.BookmarkTreeNode
object, representing the item with the given ID.
If a node corresponding to
id
could not be found, the promise will be rejected with an error message.
This example recursively prints out the subtree under a given node:
function makeIndent(indentLength) {
return ".".repeat(indentLength);
}
function logItems(bookmarkItem, indent) {
if (bookmarkItem.url) {
console.log(makeIndent(indent) + bookmarkItem.url);
} else {
console.log(makeIndent(indent) + "Folder: " + bookmarkItem.id);
indent++;
}
if (bookmarkItem.children) {
for (var child of bookmarkItem.children) {
logItems(child, indent);
}
}
}
function logSubTree(bookmarkItems) {
logItems(bookmarkItems[0], 0);
}
function onRejected(error) {
console.log(`An error: ${error}`);
}
var subTreeID = "root_____";
var gettingSubTree = browser.bookmarks.getSubTree(subTreeID);
gettingSubTree.then(logSubTree, onRejected);
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注意：
This API is based on Chromium's
chrome.bookmarks
API. This documentation is derived from
bookmarks.json
in the Chromium code.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
最后修改： , 由 MDN 贡献者