Last Updated on 2024-10-11
Updated on January 3, 2024
Many exciting things are happening with the JavaScript updates in 2024. Get ready to explore the latest JS updates.
According to the 2022 JavaScript Rising Stars report, the top three trendiest projects were:
- Bun is a JavaScript runtime launched in April 2021 that supports Typescript; it garnered over 20,000 stars on GitHub in the month following its first Beta release.
- Tauri is written in Rust for creating cross-platform desktop applications using web technologies; it moved up from fifth to second place in 2022.
- Next.js is the leading โmeta frameworkโ in React. It enables React-based web apps for server-side rendering and more.
Now, let’s look at the upcoming JavaScript updates in 2024.
JavaScript Updates in 2024
This year, the development community is eagerly awaiting the publication of ECMAScriptยฎ 2024 Languageย Specification. ECMAScript editors have continuously worked to maintain JavaScript standards.
Aside from proposed JavaScript updates from ES, the community reports show that there will be many changes in JS development this year. Let’s get to the JavaScript updates in 2024.
AngularJS Support is Discontinued
In 2018, Google announced that it would stop long-term support for AngularJS. This means the framework will no longer receive any updates or fixes as of January 2022.
Google recommends that development teams affected by the discontinuation of AngularJS should migrate their apps to Angular. Angular is the successor of AngularJS. Or they can also use other popular JS frameworks like Vue.js or React.
DHTMLX Suite 8.33
DHTMLX Suite helps developers design and create modern user interfaces (UI) faster. The suite features ready-made, easy-to-use, and highly customizable UI widgets. Another popular feature of this JS library is that it receives regular JavaScript updates.
The 7.3 version introduced the treemap chart for analyzing and visualizing their hierarchical data. Also, it enables users to add free text as an option in the ComboBox’s dropdown lists. The newest version of the library is DHTMLX Suite 8.33. The JS library has some new functionalities in this version, including the ColorPicker, Form. Container, and Grid/TreeGrid.
This additional function is also available in Grid’s and TreeGrid’s Combo editors and Form’s Combo control. Plus, the suite’s Grid and TreeGrid widgets permit custom filters in the columns for more efficient data management.
Deno 1.39
Deno 1.39 features the return of WebGPU, enhancing graphics, gaming, and machine learning capabilities. It also introduced new deno coverage reporters for improved codebase analytics. Furthermore, it made substantial strides in Node.js compatibility, making it easier for developers to transition. Finally, it includes updates to the Standard Library, performance optimizations, and the latest TypeScript 5.3 support.
TypeScript 5.3
TypeScript (TS) has become one of the most loved and popular programming languages in the past few years. One major reason why TS is popular is that it regularly receives updates. Microsoft announced the release of its latest update with TypeScript 5.3 in November 2023.
This version includes the following improvements:
- Updates to import attributes
- Checks for super Property Accesses on Instance Fields
- Consolidation Between tsserverlibrary.js and typescript.js
- instanceof Narrowing Through Symbol.hasInstance
- Interactive Inlay Hints for Types
- Narrowing On Comparisons to Booleans
- Optimizations by Comparing Non-Normalized Intersections
- Optimizations by Skipping JSDoc Parsing
- resolution-mode Supported in All Module Modes
- Settings to Prefer type Auto-Imports
- Stable Support resolution-mode in Import Types
- switch (true) Narrowing
React 18 Release Candidate
In 2021, the major updates to the React framework were one of the most discussed topics in JS communities. The updates finally came with the release of React 18, which is now available on npm.
With React 18, concurrent rendering is now possible. React developers can now successfully render several versions of their UI simultaneously. Aside from that, React 18 also features automatic batching updates, new useful hooks, and new strict mode behaviors.
JavaScript Syntax by Microsoft
Microsoft announced its official support for adding type syntax in JS. This helpful feature allows programmers to add type annotations to their JS code. TypeScript type checkers will check these type annotations, which JS engines ignore.
Accordingly, engines will recognize these new syntaxes as comments and will not affect the surrounding code. As a result, the execution of TS-based programs in browsers will be simpler and faster.
Prettier 3.1
Prettier is one of the tools loved by programmers. It helps them maintain the readability of their code. Prettier is especially helpful for complex projects where there are more contributors. The popular code formatter helps programmers ensure that they have a unified format for their codebase.
Prettier 3.1 restores indentation within nested ternaries, improving code readability. It optimizes the layout, making deeply nested conditionals more understandable. In addition, Prettier 3.1 now supports the built-in control flow syntax of Angular 17.
Corrupted Libraries
In early 2022, two free-to-use JS libraries were attacked by malicious code. The attack on color.js and faker.js caused an uproar in the development community. This is because both were popular libraries with millions of estimated downloads per week.
It turns out the attacks were inside jobs. Marak Squires, the creator of these two libraries, intentionally included malicious packages in the updates. The sabotage was said to be the result of the creator’s unsuccessful attempts to monetize his creations.
The development community quickly removed the malicious packages. As a result, discussions about making the development and maintenance of open-source projects started.
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