- Версии Javascript
- Редакции ECMAScript
- Поддержка браузерами
- Поддержка браузерами ES5 (2009)
- Поддержка браузерами ES6 (2015)
- Поддержка браузерами ES7 (2016)
- JavaScript / ECMAScript
- JavaScript Versions
- ECMAScript Editions
- Browser Support
- Browser Support for ES5 (2009)
- Browser Support for ES6 (2015)
- Browser Support for ECMAScript 2016
- Next.js Supported Browsers and Features
Версии Javascript
JavaScript был придуман Бренданом Эйхом (Brendan Eich) в 1995 году и стал стандартом ECMA в 1997 году. Официальное название стандарта — ECMA. А официальное названия языка — ECMAScript. С 2015 года версию языка ECMAScript называют по году (ECMAScript 2015).
Редакции ECMAScript
| Версия | Официальное название | Описание |
|---|---|---|
| 1 | ECMAScript 1 (1997) | Первая редакция. |
| 2 | ECMAScript 2 (1998) | Внесены редакционные правки. |
| 3 | ECMAScript 3 (1999) | Добавлены регулярные выражения. Добавлен оператор try/catch. |
| 4 | ECMAScript 4 | Никогда не выходил. |
| 5 | ECMAScript 5 (2009) | Добавлен «строгий режим». Добавлена поддержка JSON. Добавлен String.trim(). Добавлен Array.isArray(). Добавлены методы обхода элементов массива. |
| 5.1 | ECMAScript 5.1 (2011) | Внесены редакционные правки. |
| 6 | ECMAScript 2015 | Добавлены ключевые слова let и const. Добавлены значения параметров по умолчанию. Добавлен Array.find(). Добавлен Array.findIndex(). |
| 7 | ECMAScript 2016 | Добавлен оператор возведения в степень (**). Добавлен Array.prototype.includes. |
| 8 | ECMAScript 2017 | Добавлен «паддинг» строки (дополнение до нужной длины). Добавлены новые свойства объекта Object. Добавлены асинхронные функции. Добавлены разделяемая память и атомарные операции. |
| 9 | ECMAScript 2018 | Добавлены свойства rest / spread. Добавлены асинхронные итерации. Добавлен Promise.finally(). Добавления в объект RegExp. |
ECMAScript часто сокращается до ES.
Поддержка браузерами
ECMAScript 3 полностью поддерживается всеми браузерами.
ECMAScript 5 поддерживается всеми современными браузерами.
Поддержка браузерами ES5 (2009)
| Браузер | Версия | Начиная с |
|---|---|---|
| Chrome | 23 | сентябрь 2012 |
| Firefox | 21 | апрель 2013 |
| IE | 9* | март 2011 |
| IE / Edge | 10 | сентябрь 2012 |
| Safari | 6 | июль 2012 |
| Opera | 15 | июль 2013 |
* Internet Explorer 9 не поддерживает директиву ECMAScript 5 «use strict».
Поддержка браузерами ES6 (2015)
| Браузер | Версия | Начиная с |
|---|---|---|
| Chrome | 58 | апрель 2017 |
| Firefox | 54 | июнь 2017 |
| Edge | 14 | август 2016 |
| Safari | 10 | сентябрь 2016 |
| Opera | 55 | август 2017 |
Internet Explorer не поддерживает ECMAScript 2015.
Поддержка браузерами ES7 (2016)
JavaScript / ECMAScript
JavaScript был разработан для Netscape. Первым браузером, поддерживающим JavaScript, стал вышедший в 1996 году браузер Netscape 2. После Netscape компания Mozilla foundation продолжила разработку JavaScript для своих браузеров Firefox. Последняя версия JavaScript это 1.8.5 (идентична ECMAScript 5).
ECMAScript был разработан Ecma International после адаптации JavaScript. Первая редакция ECMAScript вышла в 1997 году.
Следующая таблица показывает, как соотносятся номера версий этих продуктов:
| Год | JavaScript | ECMA | Браузер |
|---|---|---|---|
| 1996 | 1.0 | Netscape 2 | |
| 1997 | ECMAScript 1 | IE 4 | |
| 1998 | 1.3 | Netscape 4 | |
| 1999 | ECMAScript 2 | IE 5 | |
| 2000 | ECMAScript 3 | IE 5.5 | |
| 2000 | 1.5 | Netscape 6 | |
| 2000 | 1.5 | Firefox 1 | |
| 2011 | ECMAScript 5 | IE 9 (за исключением «use strict») | |
| 2011 | 1.8.5 | Firefox 4 (за исключением начальных нулей в parseInt) | |
| 2012 | IE 10 | ||
| 2012 | Chrome 23 | ||
| 2012 | Safari 6 | ||
| 2013 | Firefox 21 | ||
| 2013 | Opera 15 | ||
| 2015 | ECMAScript 2015 | Частично поддерживается всеми браузерами |
Internet Explorer 4 и Netscape 4.06 были первыми браузерами, которые стали поддерживать ECMAScript 1.
Internet Explorer 5 был первым браузером, который стал поддерживать ECMAScript 2.
Internet Explorer 5.5 и Netscape 6 были первыми браузерами, которые стали поддерживать ECMAScript 3.
Internet Explorer 9 и Firefox 3.5 были первыми браузерами, которые стали поддерживать ECMAScript 5. При этом IE 9 не поддерживает директиву ECMAScript 5 «use strict».
Chrome 23, IE 10 и Safari 6 были первыми браузерами с полной поддержкой ECMAScript 5.
JavaScript Versions
JavaScript was invented by Brendan Eich in 1995, and became an ECMA standard in 1997.
ECMAScript is the official name of the language.
ECMAScript versions have been abbreviated to ES1, ES2, ES3, ES5, and ES6.
Since 2016, versions are named by year (ECMAScript 2016, 2017, 2018, 2019, 2020).
ECMAScript Editions
| Ver | Official Name | Description |
|---|---|---|
| ES1 | ECMAScript 1 (1997) | First edition |
| ES2 | ECMAScript 2 (1998) | Editorial changes |
| ES3 | ECMAScript 3 (1999) | Added regular expressions Added try/catch Added switch Added do-while |
| ES4 | ECMAScript 4 | Never released |
| ES5 | ECMAScript 5 (2009) |
This tutorial covers every version of JavaScript:
- The Original JavaScript ES1 ES2 ES3 (1997-1999)
- The First Main Revision ES5 (2009)
- The Second Revision ES6 (2015)
- Yearly Additions (2016, 2017, 2018, 2019, 2020)
Browser Support
ECMAScript 1 — 6 is fully supported in all modern browsers.
Browser Support for ES5 (2009)
| Browser | Version | From Date |
|---|---|---|
| Chrome | 23 | Nov 2012 |
| Firefox | 21 | May 2013 |
| IE | 9* | Mar 2011 |
| IE / Edge | 10 | Sep 2012 |
| Safari | 6 | Jul 2012 |
| Opera | 15 | Jul 2013 |
* Internet Explorer 9 does not support ECMAScript 5 «use strict».
Browser Support for ES6 (2015)
| Browser | Version | Date |
|---|---|---|
| Chrome | 51 | May 2016 |
| Firefox | 52 | Mar 2017 |
| Edge | 14 | Aug 2016 |
| Safari | 10 | Sep 2016 |
| Opera | 38 | Jun 2016 |
Internet Explorer does not support ECMAScript 2015.
Browser Support for ECMAScript 2016
| Browser | Version | Date |
|---|---|---|
| Chrome | 52 | Jul 2016 |
| Firefox | 54 | Jun 2017 |
| Edge | 14 | Aug 2016 |
| Safari | 10.1 | Mar 2017 |
| Opera | 39 | Aug 2016 |
Next.js Supported Browsers and Features
NextJs is a popular JavaScript library that helps developers create server-side rendered React applications. It’s one of the most popular frameworks for creating React applications, and it’s used by some of the biggest companies in the world, such as Airbnb, Netflix, and Reddit. In this blog post, we will explore what NextJs is, what browsers it supports, and what features are included in its JavaScript library. We will also provide some resources for learning more about this popular framework. With its built-in support for JavaScript, you can easily take advantage of all the latest browser features without having to worry about compatibility issues. Plus, with its wide range of supporting libraries, you’ll be able to find everything you need to get started with NextJs development.
What is NextJs? NextJs is a JavaScript framework that allows developers to create front-end applications. NextJs applications are composed of React components and can be run on a variety of browsers. NextJs is a versatile JavaScript framework that can be used to create front-end applications for a variety of browsers. The framework’s support for server-side rendering, static file serving, and code splitting makes it an attractive option for developers who are looking to improve performance and reduce load times.
In addition to supporting modern browsers, NextJs also provides a number of features that make it an attractive option for developers. These include:
- Server-side rendering: This means that your application will be rendered on the server before being sent to the client. This can improve performance and reduce load times.
- Static file serving: NextJs can serve static files such as images, CSS, and JavaScript from a directory on the server. This means that your application will be able to load faster and use less bandwidth.
- Code splitting: This feature allows you to split your code into multiple bundles that can be loaded on demand. This can improve performance by reducing the amount of code that needs to be downloaded initially.
Supported Browsers and Features: JavaScript is a programming language that is supported by most web browsers, including Google Chrome, Mozilla Firefox, Safari, Microsoft Edge, and Opera. JavaScript is also used by many popular website platforms, such as WordPress and Tumblr.
JavaScript can be used to create dynamic web pages that can interact with the user. JavaScript can also be used to add special effects to web pages, such as animations or interactive forms. However, not all browsers support all features of JavaScript. The table below lists the supported browsers and features in JavaScript.
NextJs is a React framework that provides a number of benefits for web development, including server-side rendering (SSR), static site generation (SSG), automatic code splitting, and more. One area where NextJs shines is browser compatibility. Out of the box, NextJs supports all modern browsers, including Internet Explorer 11. This means that you can develop your NextJs application with confidence knowing that it will work for the majority of users. In this article, we will explore the supported browsers and features for NextJs. We will also provide some tips on how to ensure that your NextJs application works for older browsers.
What browsers does NextJs support? The current version of NextJs supports all modern browsers, including:
- Chrome: A web browser developed by Google.
- Safari: A web browser developed by Apple.
- Firefox: A web browser developed by Mozilla.
- Edge: A web browser developed by Microsoft.
NextJs also supports Internet Explorer 11 and earlier versions with polyfills.
What features does NextJs support? NextJs is a React framework that supports several features, including the following:
- Automatic code splitting: This feature allows NextJs to automatically split code into different bundles, which helps to improve load times.
- Server-side rendering: This feature allows NextJs to render pages on the server, which can improve performance and SEO.
- Static file serving: This feature allows NextJs to serve static files, such as images or CSS files, which can improve performance.
- Prefetching: This feature allows NextJs to prefetch resources, such as data or JavaScript files, which can improve performance.