Learn about the Keyboard interface, including its properties and methods, specifications and browser compatibility.... js if (navigator.keyboard) { const...value for each of these keys: js navigator.keyboard.lock(["KeyW"...
Learn about the Window.innerHeight property, including its type, code examples, specifications, and browser compatibility....Examples Assuming a frameset js console.log(window.innerHeight);...id="width"></span></p> JavaScript js const heightOutput = document...
Learn about the submit event, including its type, syntax, and properties, code examples, specifications, and browser compatibility.... js addEventListener("submit", (event)...</form> <p id="log"></p> JavaScript js function logSubmit(event) { log...
The JavaScript strict mode-only exception "setting getter-only property" occurs when there is an attempt to set a new value to a property for which only a getter is specified, or when setting a private property that similarly only has a getter defined.... js "use strict"; function Archiver()...for it, for example like this: js "use strict"; function Archiver()...
In this article, we've given you a simple guide to using JsON in your programs, including how to create and parse JsON, and how to access data locked inside it. In the next article, we'll begin looking at object-oriented JavaScript.... For example: js superHeroes.homeTown; superHeroes["active"];...members list, you'd do this: js superHeroes["members"][1]["powers"][2];...
Learn about the FontData interface, including its properties and methods, code examples, specifications, and browser compatibility.... js async function logFontData()...Web Open Font Format (WOFF). js async function computeOutlineFormat()...
Learn about the HTMLMetaElement interface, including its properties and methods, code examples, specifications, and browser compatibility....appended to the document <head> : js const meta = document.createElement("meta");...appended to the document <head> : js const meta = document.createElement("meta");...
Learn about the dragleave event, including its type, syntax, and properties, code examples, specifications, and browser compatibility.... js addEventListener("dragleave"...background-color: purple; } JavaScript js const target = document.getE...
Expando properties are properties added to DOM nodes with JavaScript, where those properties are not part of the object's DOM specification:...the object's DOM specification: js window.document.foo = 5; // foo...