TypeScript – the strongly typed JavaScript variant brought to us by Microsoft – has officially reached a new beta with the v5.5 release with major

TypeScript 5.5 Beta Release

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2024-04-27 03:30:02

TypeScript – the strongly typed JavaScript variant brought to us by Microsoft – has officially reached a new beta with the v5.5 release with major improvements in performance and size optimizations for regular expression checking.

The TypeScript 5.5 Beta was officially introduced to us yesterday – on April 25th, 2024 – and can be access via the following command listed below. With that being said, we are expecting a Release Candidate version to be out in early June with a final release due in the last part of June.

The latest version and beta release of TypeScript features a long list of improvements that we need to talk about. For the performance and size, monomorphization work has been done for the language service and public API. With this major change, the editor experience and buld tools that are using TypeScript API will get a lot faster according to the TypeScript Core Developers. This was also the same for Node and Symbol Objects in the TypeScript 5.0 release to ensure that they had a consistent set of properties and initialization order.

TypeScript 5.5 will introduce basic syntax checking on regular expressions. Up until now, the programming language usually always skipped over most to all of the regular expressions in application code. This is because that regular expressions technically have quite the extensible grammar while TypeScript will never make an effort to compile regular expressions to earlier versions of JavaScript. This means that common problems will usually go undiscoverable when a JavaScript Developer – who is using TypeScript for their application code – when using regular expressions.