New Internationalization API features include Intl.DisplayNames, Intl.ListFormat, and Intl.Segmenter. To learn more, see the public and private instance field proposal. Public static class fields are also available, adding to the previously supported public instance class fields. Developers that used conventions before can switch to built-in support to manage access to properties. Updates to the JavaScript engine in WebKit adds new support for private class fields to enforce restrictions for static and instance fields in ES6 classes. Developers can now offer WebM content to users, though users will enjoy the best quality and power efficiency with h.264 or HEVC. Now, WebKit on macOS supports WebM files containing VP8 or VP9 video tracks and Vorbis audio tracks. With Safari 14, WebKit added support for WebM via MSE on iPadOS and macOS. WebKit added improved support for WebM media. Learn more in the MediaStream Recording specification. It allows websites to record audio and video, then encode them using the platform’s available set of default encodings. WebKit added support for MediaStream Recording, also known as the MediaRecorder API. Pages that want to prevent the default handling of Wheel Events which result from gestures like trackpad swipes on macOS, must now call preventDefault() on the first Wheel Event in the sequence. Wheel handlers registered on root objects (window/document/body) with default arguments will be treated as passive. Updated wheel Event handling improves performance and interoperability with other browsers. Improved mouse support on iPadOS and in Catalyst apps, including wheel events and hover/pointer media queries.Animation of pseudo-elements beyond ::before and ::after.Web Animations now work on 122 more properties.There are several new interoperability improvements in WebKit: You can learn more about web audio from the Web Audio API specification. It is now available unprefixed with support for advanced audio processing via Audio Worklets. Updates to the Web Audio API bring it to standards compliance. Web Audio APIĪs a continuing area of focus, Safari compatibility improvements are ongoing. Note that users will need Siri enabled in System Preferences on macOS or Settings in iOS or iPadOS for the API to be available to be used.įor more information on speech recognition and speech synthesis on the web, see the Web Speech API specification. That means web developers can enjoy the benefits of high-quality transcription for over 50 languages and dialects. Now, Safari supports speech recognition powered by the same speech engine as Siri. The Web Speech API in WebKit has supported speech synthesis for some time. To learn more about the API, see the Paint Timing specification. first-contentful-paint to get the time for the user to see content such as text or an image.first-paint for the time it takes to show pixels of anything that is not the user-agent’s default background.WebKit added the Paint Timing API to its suite of performance APIs to provide this measurement. Paint Timing APIĪ valuable metric to improving the performance of web content is the time it takes for the user-agent to show something to the user. You can learn more by reading “ CSS Individual Transform Properties” on the WebKit blog. This syntax also avoids unintentional overrides of other transform-related properties and eliminates pre-computing intermediate values when using keyframe animations. You might find it easier to understand and remember. This is a syntactical and conceptual difference - the result is the same. Now, if you wish, you can instead write: translate: 100 px 100 px You could access this power through code like this: transform: translate(100 px, 100 px) rotate(180 deg) scale(2) With WebKit support of Individual Transform Properties, web developers can write CSS rules and keyframe animations in a more straightforward way.įor years, the transform property has provided the ability to scale, rotate, and translate. Now with Safari 14.1, these fields are supported on macOS as well. Safari has supported these input fields on iOS since 2012. In HTML, the date, time, datetime-local attributes for the input element prompt the browser to create date and/or time controls - an interface that’s designed to let the user easily enter a time or a date, usually with a calendar. For more information, see the “flex containers” definition in the “Row and Column Gutters” section of the CSS Box Alignment specification.
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