const
Declares a constant with block level scope
Scoped Styles: the @scope rule
Allows CSS rules to be scoped to part of the document, with upper and lower limits described by selectors.
ECMAScript 2015 (ES6)
Support for the ECMAScript 2015 specification. Features include Promises, Modules, Classes, Template Literals, Arrow Functions, Let and Const, Default Parameters, Generators, Destructuring Assignment, Rest & Spread, Map/Set & WeakMap/WeakSet and many more.
Gyroscope
Defines a concrete sensor interface to monitor the rate of rotation around the device’s local three primary axes.
let
Declares a variable with block level scope
Scoped attribute
Deprecated method of allowing scoped CSS styles using a "scoped" attribute. Now [removed from the specification](https://github.com/whatwg/html/issues/552) and replaced by the [@scope CSS rule](/css-cascade-scope).
audioworkletglobalscope api
audioworkletglobalscope api: currentframe
audioworkletglobalscope api: currenttime
audioworkletglobalscope api: samplerate
cssscoperule api
cssscoperule api: end
cssscoperule api: start
gpudevice api: poperrorscope
gyroscope api
gyroscope api: `gyroscope()` constructor
gyroscope api: x
gyroscope api: y
gyroscope api: z
htmltablecellelement api: scope
paintworkletglobalscope api
paintworkletglobalscope api: registerpaint
serviceworkerregistration api: scope
sharedworkerglobalscope api
sharedworkerglobalscope api: close
sharedworkerglobalscope api: name
workerglobalscope api
workerglobalscope api: dump
workerglobalscope api: `error` event
workerglobalscope api: fonts
workerglobalscope api: importscripts
workerglobalscope api: importscripts: strict mime type checks for `importscripts()`
workerglobalscope api: `languagechange` event
workerglobalscope api: location
workerglobalscope api: navigator
workerglobalscope api: `offline` event
workerglobalscope api: `online` event
workerglobalscope api: `securitypolicyviolation` event
workerglobalscope api: self
workletglobalscope api
css at-rule: `@scope`
css property: timeline-scope
css property: timeline-scope: all
css property: timeline-scope: none
css selector: `:scope`
css selector: `:scope`: support in dom api such as in `queryselector()` and `queryselectorall()`
html element: td: scope
html element: th: scope
manifest: scope
manifest: serviceworker: scope
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