diff --git a/sources/news/20220629 Vim 9.0 is Here With a New Script Language Promising Performance Boost.md b/sources/news/20220629 Vim 9.0 is Here With a New Script Language Promising Performance Boost.md new file mode 100644 index 0000000000..2196c1117d --- /dev/null +++ b/sources/news/20220629 Vim 9.0 is Here With a New Script Language Promising Performance Boost.md @@ -0,0 +1,89 @@ +[#]: subject: "Vim 9.0 is Here With a New Script Language Promising Performance Boost" +[#]: via: "https://news.itsfoss.com/vim-9-0-release/" +[#]: author: "Ankush Das https://news.itsfoss.com/author/ankush/" +[#]: collector: "lkxed" +[#]: translator: " " +[#]: reviewer: " " +[#]: publisher: " " +[#]: url: " " + +Vim 9.0 is Here With a New Script Language Promising Performance Boost +====== +Vim 9.0 update brings a new script language, promises a performance boost, and gets closer to common programming languages. + +![][1] + +Vim, the terminal text editor is back with a major update. + +The Vim 9.0 release includes several tiny improvements along with a new script language (Vim9 script). + +Here, let me highlight the key changes. + +### Vim 9.0: What’s New? + +Vim 9.0 is a significant upgrade after almost three years. And, the release announcement mentions that Vim 9.0 is more reliable than any before, which is a good thing to hear. + +Some of the refinements include: + +#### A New Vim9 Script + +Vim script always ensures backwards compatibility, but that changes a bit with this update. + +The backwards compatibility always comes with slower execution performance. So, with the Vim9 script, they aim to drastically improve performance. + +The release note explains: + +> This is accomplished by compiling commands into instructions that can be efficiently executed. An increase in execution speed of 10 to 100 times can be expected. + +Sounds incredible, isn’t it? + +However, what’s the catch for these performance improvements? Here’s what they say: + +> The performance improvements can only be achieved by not being 100% backwards compatible. For example, making function arguments available by creating an “a:” dictionary involves quite a lot of overhead. In a Vim9 function this dictionary is not available. Other differences are more subtle, such as how errors are handled. + +So, you no longer get 100% backwards compatibility, but the legacy scripts should work as usual. + +In addition to the performance improvements, the new script language also aims to get closer to commonly used programming languages, including JavaScript, TypeScript, and Java. + +The developers also plan to add support for **classes** in the script language. + +You can learn more about the new script in the [official help page][2]. + +#### New Features + +You will also find some technical feature additions like: + +* Function must be defined with def, if you want to benefit from the speedup. +* The arguments and return types must be specificed. +* Line continuation does not require using a backlash. +* It now simpler to split large scripts. You can use export to make functions/variables available to other scripts, and import to use exported items. +* Comments now start with # replacing double quote syntax. + +In either case, you can always refer to the [official announcement][3] to explore all the technical details with the update. + +### Download Vim 9.0 + +If you are going to try Vim for the first, you might want to check out our [Vim vs Nano comparison article][4] (keeping in mind the changes for this release). + +You can download the latest version directly from the [official website][5]. Packages should be available for Debian-based/Ubuntu-based systems. For other Linux distributions, you might want to explore the documentations. + +You can build it from sources and apply the latest patches as well. + +-------------------------------------------------------------------------------- + +via: https://news.itsfoss.com/vim-9-0-release/ + +作者:[Ankush Das][a] +选题:[lkxed][b] +译者:[译者ID](https://github.com/译者ID) +校对:[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译,[Linux中国](https://linux.cn/) 荣誉推出 + +[a]: https://news.itsfoss.com/author/ankush/ +[b]: https://github.com/lkxed +[1]: https://news.itsfoss.com/wp-content/uploads/2022/06/vim-9.0.jpg +[2]: https://vimhelp.org/vim9.txt.html +[3]: https://www.vim.org/vim90.php +[4]: https://itsfoss.com/vim-vs-nano/ +[5]: https://www.vim.org/download.php