There are several properties you can look at in order to determine the width and height of elements, and it can be tricky to determine which is the right one for your needs. This article is designed to help you make that decision.  Note that all these properties are read-only.  If you want to set the width and height of an element, use  width and height; or, the overriding min-width and max-width, and min-height and max-height properties.

client height Client width CSSOM View Guide Intermediate NeedsCompatTable NeedsSpecTable offsetHeight offsetWidth size of displayed content

API Client Experimental Interface Reference Service Workers ServiceWorkerClient ServiceWorkers

API Client Experimental frameType NeedsExample Property Reference Service Workers ServiceWorker

API Client Experimental id NeedsExample Property Reference Service Workers ServiceWorker

API Client Experimental Method postMessage Reference Service Workers ServiceWorker

There are a number of web technologies that store data of one kind or another on the client-side (i.e. on your local disk.) The process by which the browser works out how much space to allocate to web data storage and what to delete when that limit is reached is not simple, and differs between browsers. This article attempts to explain how this all works.

client-side Database eviction IndexedDB limit LRU storage Storage

API Client Experimental Interface Reference Service Workers ServiceWorker WindowClient

API Client Experimental Focus Method Reference Service Workers WindowClient

API Client Experimental Method Navigate Reference Service Workers WindowClient

The url read-only property of the Client interface returns the URL of the current service worker client.

API Client Experimental Expérimental Property Reference Référence Service Workers url URL

API Client Deprecated Experimental Expérimental FetchEvent Property Reference Référence Service Workers Workers

The IDBEnvironment interface of the IndexedDB API contains the indexedDB property, which provides access to IndexedDB functionality. It is the top level IndexedDB interface implemented by the window and Worker objects.

access API asynchronous client-side Database DOM IDBEnvironment IndexedDB Interface Reference Référence Storage