This means that development feedback loops are shorter, build tooling is simpler, and deployment is more straightforward. The primary and most obvious advantage to using tsm is that developers don’t need to worry about TypeScript transpilation. This approach essentially abstracts away the typical transpilation step, making it transparent to the user. Rather, tsm uses esbuild under the hood to quickly transpile TypeScript sources into JavaScript on the fly before passing it to the Node.js runtime. It expands Node.js to provide native TypeScript support without the need to transpile it to JavaScript first. Tsm is a TypeScript module loader for Node.js, created by Luke Edwards. Tsm is a brand-new player in this category and represents a step forward in the broader TypeScript/JavaScript ecosystem. This approach still represents the vast majority of how TypeScript programs are run, but a few projects have emerged that allow developers to run their TypeScript code directly. TypeScript has taken the web development world by storm, becoming increasingly popular for enterprise projects and solo developers alike.Įxecuting TypeScript code typically involves transpiling it down to vanilla JavaScript for use in common environments like Node.js or the browser. Using tsm as a shebang interpreter in TypeScript Matthew Swensen Follow Principal software engineer and open source enthusiast.

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