Marc Mintel
5397309103
Some checks failed
Build & Deploy / 🔍 Prepare (push) Successful in 20s
Build & Deploy / 🧪 QA (push) Failing after 34s
Build & Deploy / 🏗️ Build (push) Has started running
Build & Deploy / 🚀 Deploy (push) Has been cancelled
Build & Deploy / 🧪 Smoke Test (push) Has been cancelled
Build & Deploy / ⚡ Lighthouse (push) Has been cancelled
Build & Deploy / 🔔 Notify (push) Has been cancelled
27 lines
1.5 KiB
Plaintext
27 lines
1.5 KiB
Plaintext
import { CLSMetric, MetricRatingThresholds, ReportOpts } from './types';
|
|
/** Thresholds for CLS. See https://web.dev/articles/cls#what_is_a_good_cls_score */
|
|
export declare const CLSThresholds: MetricRatingThresholds;
|
|
/**
|
|
* Calculates the [CLS](https://web.dev/articles/cls) value for the current page and
|
|
* calls the `callback` function once the value is ready to be reported, along
|
|
* with all `layout-shift` performance entries that were used in the metric
|
|
* value calculation. The reported value is a `double` (corresponding to a
|
|
* [layout shift score](https://web.dev/articles/cls#layout_shift_score)).
|
|
*
|
|
* If the `reportAllChanges` configuration option is set to `true`, the
|
|
* `callback` function will be called as soon as the value is initially
|
|
* determined as well as any time the value changes throughout the page
|
|
* lifespan.
|
|
*
|
|
* _**Important:** CLS should be continually monitored for changes throughout
|
|
* the entire lifespan of a page—including if the user returns to the page after
|
|
* it's been hidden/backgrounded. However, since browsers often [will not fire
|
|
* additional callbacks once the user has backgrounded a
|
|
* page](https://developer.chrome.com/blog/page-lifecycle-api/#advice-hidden),
|
|
* `callback` is always called when the page's visibility state changes to
|
|
* hidden. As a result, the `callback` function might be called multiple times
|
|
* during the same page load._
|
|
*/
|
|
export declare const onCLS: (onReport: (metric: CLSMetric) => void, opts?: ReportOpts) => void;
|
|
//# sourceMappingURL=getCLS.d.ts.map
|