StateOfJS side said, because the reasons are not satisfactory JavaScript ecosystem development, which in turn released the Survey Report JavaScript 2019 years . This year's fourth edition of the JavaScript state survey, covering 21,717 bits respondents . Customer data visualization expert Amelia Wattenberger for a comprehensive overview of the JavaScript ecosystem .
In order to promote the survey conducted, the official also said it would launch its own JavaScript T Xu . This T-shirt features a "JavaScript periodic table", which lists the most popular categories grouped by the library, as well as their GitHub Stars (in thousands).
The official said that beginning this year, in addition to the tools used by the user, it will also track how users are written in JavaScript: mode used, syntax and functions.
1, JavaScript status quo - "dialects"
With the maturity of JavaScript, JavaScript-based developer created a number of other languages, or "dialect."
Among them, the biggest winner of the year 2019, compared with TypeScript. In addition, Facebook has the support of Reason behind is also worth noting that with a higher degree of satisfaction and interest value, second only to TypeScript.
2, JavaScript status quo - the front frame
In terms of ranking, React still maintain the highest satisfaction rate in a row ranked first, while the rise Vue also did not stop, followed by the second.
Angular the satisfaction rate is not satisfactory, in spite of itself has a huge user base, but it is difficult to see it re-boarded the throne Guanya the front end of the frame.
3, JavaScript status quo - the data layer
Redux 仍是使用最广泛的工具。不过GraphQL 也并非没有冲击的可能，其用户持续快速上升，如今已达到了 38.7%。同时，Apollo 的用户数也在持续上涨，已从 2018 年的 11.1% 增加到了 24.9%。
4、JavaScript 现状 —— 后端框架（服务端）
JavaScript 在后端（服务端）领域近年来似乎没有取得任何重大突破，虽然每年都有无数的框架出现，但很少有能够获得很大的成功并挑战 Express 的地位的。
2019 年，Express 的地位仍没有被撼动。拥有 Express 继任者称号的 Koa 其表现仍不尽如人意。
而 Next.js 则仍吸引着很多人的兴趣，表现良好，其用户数已从 2018 年的 8.6% 上升到了 24.7%。
5、JavaScript 现状 —— 测试
Jest 一路崛起，超越曾经最常用的单元测试框架 Mocha，以 61.2% 的使用率成功占据榜首。
Storybook 也表现喜人，由 2018 年的 15.4% 成功上升至 32.2%，位列第三顺位。
6、JavaScript 现状 —— 移动和桌面
React Native 和 Electron 仍是使用 Web 技术构建移动和桌面应用的两个主要解决方案。
官方在 5 分制的同意程度上，让受访者针对以下问题进行了打分：
- JavaScript 朝着正确的方向发展
- 现在构建 JavaScript 应用程序过于复杂
- JavaScript在线使用过多
- 我喜欢构建 JavaScript 应用程序
- 我希望 JavaScript 成为我的主要编程语言
- JavaScript 生态系统变化太快
JavaScript 奖项再度回归，具体获奖情况如下：
完整报告请查阅：The State of Javascript 2019