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Microsoft has announced a release candidate (RC) of TypeScript 7.0. A port of JavaScript-based TypeScript that is based on the Go language, TypeScript 7.0 is often about 10 times faster than TypeScript 6.0, Microsoft said, thanks to native code speed and shared memory parallelism.
Developers can get the new compiler by installing it from the typescript package on npm:
npm install -D typescript@rc
Unlike TypeScript 6.0, TypeScript 7.0 performs many steps in parallel, including parsing, type checking, and emitting, Microsoft said. Some of these steps, such as parsing and emitting, can mostly be done independently across files. For that reason, parallelization automatically scales well with larger codebases with relatively little overhead. However, not every step in a TypeScript build is easily parallelizable, Microsoft said.
