TypeScript enhances JavaScript by introducing static typing, allowing developers to catch bugs earlier in the development process, but relying solely on local type checks by developers can lead to undetected issues reaching production. To address this, the tutorial outlines how to integrate TypeScript type checking into a CircleCI continuous integration (CI) pipeline, ensuring automated checks occur with every code push. By adding the command `tsc --noEmit` to the CircleCI configuration, developers can prevent type errors from being merged, providing a safety net that fosters safe collaboration and reduces the risk of runtime errors. This approach not only enhances code reliability but also streamlines the onboarding process for new developers by establishing a consistent code quality standard. The tutorial provides a step-by-step guide to setting up a TypeScript project with CircleCI, including creating a GitHub repository and configuring the CI pipeline to automatically detect and halt progress on type errors, thus demonstrating the effectiveness of automated type checking in maintaining high-quality code.