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  1. Crear hipervínculos - Aprende desarrollo web | MDN

    Los hipervínculos (o enlaces) son elementos verdaderamente importantes — son los que hacen que la web sea web. Este artículo expone la sintaxis necesaria para crear un enlace, además contiene un catálogo de buenas prácticas para crearlos....com/large-report.pdf"> Descarga el informe de...View this page on GitHub • Report a problem with this content...

    developer.mozilla.org/es/docs/Learn/HTML/Introd...
  2. 制約検証 - HTML: ハイパーテキストマークアップ言語 | MDN

    ウェブフォームの作成は常に複雑な作業でした。フォーム自体をマークアップすること自体は簡単ですが、それぞれの入力欄が妥当で一貫しているかどうかをチェックすることはもっと難しく、問題をユーザーに伝えることは頭痛がするかもしれません。HTML5 では、フォームに新しい仕組みが導入されました。 要素に意味を持つ新しい型と、クライアント側でフォームの内容をチェックする作業を簡単にする制約検証が追加されました。基本的な、よくある制約は、JavaScript を必要とせずに、新しい属性を設定することでチェックできます。もっと複雑な制約は制約検証 API を使用して検査することができます。...View this page on GitHub • Report a problem with this content...

    developer.mozilla.org/ja/docs/Web/HTML/Constrai...
  3. Advanced text formatting - Learn web developmen...

    That marks the end of our study of HTML text semantics. Bear in mind that what you have seen during this course is not an exhaustive list of HTML text elements — we wanted to try to cover the essentials, and some of the more common ones you will see in the wild, or at least might find interesting. To find way more HTML elements, you can take a look at our HTML element reference (the Inline text semantics section would be a great place to start). In the next article, we'll look at the HTML elements you'd use to structure the different parts of an HTML document....View this page on GitHub • Report a problem with this content...

    developer.mozilla.org/en-US/docs/Learn/HTML/Int...
  4. <input type="datetime-local"> - HTML (HyperText...

    Les éléments dont l'attribut type vaut "datetime-local" permettent de créer des champs destinés à saisir simplement une date (définie par une année, un mois, et un jour) et une heure (définie par une heure et une minute). Il n'y a pas de secondes dans ce contrôle....View this page on GitHub • Report a problem with this content...

    developer.mozilla.org/fr/docs/Web/HTML/Element/...
  5. Web Audio API - Web APIs | MDN

    The Web Audio API provides a powerful and versatile system for controlling audio on the Web, allowing developers to choose audio sources, add effects to audio, create audio visualizations, apply spatial effects (such as panning) and much more....View this page on GitHub • Report a problem with this content...

    developer.mozilla.org/en-US/docs/Web/API/Web_Au...
  6. JavaScript performance optimization - Learn web...

    It is very important to consider how you are using JavaScript on your websites and think about how to mitigate any performance issues that it might be causing. While images and video account for over 70% of the bytes downloaded for the average website, byte per byte, JavaScript has a greater potential for negative performance impact — it can significantly impact download times, rendering performance, and CPU and battery usage. This article introduces tips and techniques for optimizing JavaScript to enhance the performance of your website....View this page on GitHub • Report a problem with this content...

    developer.mozilla.org/en-US/docs/Learn/Performa...
  7. JavaScript basics - Learn web development | MDN

    JavaScript is a programming language that adds interactivity to your website. This happens in games, in the behavior of responses when buttons are pressed or with data entry on forms; with dynamic styling; with animation, etc. This article helps you get started with JavaScript and furthers your understanding of what is possible....View this page on GitHub • Report a problem with this content...

    developer.mozilla.org/en-US/docs/Learn/Getting_...
  8. <position-area> - CSS: Cascading Style Sheets |...

    The CSS data type defines the cell or spanned cells of a position-area grid, a 3x3 grid whose center cell is an anchor element....View this page on GitHub • Report a problem with this content...

    developer.mozilla.org/en-US/docs/Web/CSS/positi...
  9. Strict mode - JavaScript | MDN

    JavaScript's strict mode is a way to opt in to a restricted variant of JavaScript, thereby implicitly opting-out of "sloppy mode". Strict mode isn't just a subset: it intentionally has different semantics from normal code. Browsers not supporting strict mode will run strict mode code with different behavior from browsers that do, so don't rely on strict mode without feature-testing for support for the relevant aspects of strict mode. Strict mode code and non-strict mode code can coexist, so scripts can opt into strict mode incrementally....View this page on GitHub • Report a problem with this content...

    developer.mozilla.org/en-US/docs/Web/JavaScript...
  10. Background Tasks API - Web APIs | MDN

    The Cooperative Scheduling of Background Tasks API (also referred to as the Background Tasks API or the requestIdleCallback() API) provides the ability to queue tasks to be executed automatically by the user agent when it determines that there is free time to do so....View this page on GitHub • Report a problem with this content...

    developer.mozilla.org/en-US/docs/Web/API/Backgr...