I’m currently running an older version of TypeScript (around 1.0.3) on my development machine and I need to upgrade it to a newer release like version 2.0.0 or whatever the most recent stable version is available.
I installed TypeScript originally through npm, so I’d prefer to stick with the same package manager for the upgrade process. What are the proper npm commands I should use to update my TypeScript installation? Should I uninstall the old version first, or can I just run an update command directly?
Any step-by-step guidance would be really helpful since I want to make sure I don’t break my current development setup.
Before upgrading, it’s wise to verify the version of TypeScript you require. Transitioning from 1.0.3 to a significantly newer version may introduce breaking changes, potentially disrupting your existing projects. Check your globally installed version with npm list -g typescript, then proceed with npm install -g typescript@latest for the most recent stable release. However, if you manage multiple projects, consider installing TypeScript locally in each project rather than globally. This allows for different TypeScript versions per project and avoids compatibility issues. Use npm install typescript --save-dev in the specific project folder. This method has greatly reduced my version-related challenges.
Back up your setup first - you’re jumping from 1.0.3 to a much newer version, so expect compatibility issues. Check if TypeScript’s installed globally with npm list -g typescript. If it shows up, run npm install -g typescript to get the latest version. It’ll replace the old one automatically. Test everything thoroughly after upgrading - syntax and compiler options have changed massively since 1.0.3. I learned this the hard way upgrading from an ancient version and spent hours fixing deprecated stuff. Keep your package.json updated to track these changes.
just run npm update -g typescript if it’s global or npm update typescript if local. no need to uninstall the old one, npm will take care of that. check with tsc --version after to see it worked!