> For the complete documentation index, see [llms.txt](https://mm.ricky.moe/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mm.ricky.moe/frontend-ecosystem/fetch/fetch-qu-xiao-qing-qiu.md).

# Fetch取消请求

## AbortController

```javascript
// Create an instance.
const controller = new AbortController()
const signal = controller.signal

function beginFetching() {
    console.log('Now fetching');
    var urlToFetch = "https://httpbin.org/delay/3";

    fetch(urlToFetch, {
            method: 'get',
            signal: signal,
        })
        .then(function(response) {
            console.log(`Fetch complete. (Not aborted)`);
        }).catch(function(err) {
            console.error(` Err: ${err}`);
        });
}


function abortFetching() {
    console.log('Now aborting');
    // Abort.
    controller.abort()
}
```