downloads.erase() 编辑
The erase
()
function of the downloads
API erases matching DownloadItems
from the browser's download history, without deleting the downloaded files from disk.
To remove the files from disk, you need to use downloads.removeFile()
.
This is an asynchronous function that returns a Promise
.
Note: If you want to remove a downloaded file from disk and erase it from history, you have to call downloads.removeFile()
before you call erase()
. If you try it the other way around you'll get an error when calling downloads.removeFile()
, because it no longer exists according to the browser.
Syntax
var erasing = browser.downloads.erase(
query // DownloadQuery
)
Parameters
query
- A
downloads.DownloadQuery
object.
Return value
A Promise
. If the call was successful, the promise will be fulfilled with an array of integers representing the ids of the erased DownloadItems
. If no items matching the query parameter could be found, the array will be empty. If the call failed, the promise will be rejected with an error message.
Browser compatibility
BCD tables only load in the browser
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Examples
Erase the most recent download:
function onErased(ids) {
console.log(`Erased: ${ids}`);
}
function onError(error) {
console.log(`Error erasing item: ${error}`);
}
var erasing = browser.downloads.erase({
limit: 1,
orderBy: ["-startTime"]
});
erasing.then(onErased, onError);
Erase everything:
function onErased(ids) {
console.log(`Erased: ${ids}`);
}
function onError(error) {
console.log(`Error erasing item: ${error}`);
}
var erasing = browser.downloads.erase({});
erasing.then(onErased, onError);
Example extensions
AcknowledgementsThis API is based on Chromium's chrome.downloads
API.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
// Copyright 2015 The Chromium Authors. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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