Node.js is able to execute TypeScript files without additional configuration
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Re: Node.js is able to execute TypeScript files without additional configuration
#2It looks like this works by stripping away the type information, so at best it saves you a transpilation pass and doesn't improve safety.
Re: Node.js is able to execute TypeScript files without additional configuration
#3It looks like this works by stripping away the type information, so at best it saves you a transpilation pass and doesn't improve safety.
Exactly! Type checking can be long and costly.
Re: Node.js is able to execute TypeScript files without additional configuration
#4Impressed with what Node is doing the last years, deno and bun has really made Node focus and improve. It was stuck for a while
Re: Node.js is able to execute TypeScript files without additional configuration
#5Re: Node.js is able to execute TypeScript files without additional configuration
#6Is there any movement in the node world for the runtime to be able to ascertain types? Obviously nodejs doesn't do this, but does Bun or Deno or are there plans for any of this in the future?
Re: Node.js is able to execute TypeScript files without additional configuration
#7It looks like this works by stripping away the type information, so at best it saves you a transpilation pass and doesn't improve safety.
Not needing a separate compile step just to run some script sounds great to me. I will run tsc if I want a type check.
Re: Node.js is able to execute TypeScript files without additional configuration
#8It looks like this works by stripping away the type information, so at best it saves you a transpilation pass and doesn't improve safety.
Yeah agreed - saying "node can execute typescript files" is a bit misleading. More accurate would be "node can find-and-replace type information with spaces from .ts files and try and executing them as if they were plain JavaScript"
I suspect this would only handle the most rudimentary and basic typescript files. Once you start using the type system more extensively I suspect this will blow-up in your face.
It's kinda a shame. What a missed opportunity to do it properly (rather than relying on third party plugins etc)
Edit: if you are just using typescript for type checking at build time (i.e. the most basic rudimentary typescript files) the sure fine this may help you. But typescript also generates JavaScript code for missing features e.g. proper class access modifiers, generics, interfaces, type aliases, enums, decorators etc etc. typescript generates JS code to handle all that, so you're going to have a bad time if node just replaces it with the space character at run time.
Re: Node.js is able to execute TypeScript files without additional configuration
#9It looks like this works by stripping away the type information, so at best it saves you a transpilation pass and doesn't improve safety.
I'm using tsx for a project to achieve the same effect. As you said, it saves you from having to set up a build/transpilation step, which is very useful for development. Tsx has a --watch feature built in as well, which allows me to run a server from the typescript source files and automatically restart on changes. Maybe with nodemon and this new node improvement this can now done without tsx.
To check types at runtime (if that can even be done in a useful way?) it would have to be built into v8, and I suppose that would be a whole rewrite.
Re: Node.js is able to execute TypeScript files without additional configuration
#10Impressed with what Node is doing the last years, deno and bun has really made Node focus and improve. It was stuck for a while
What are the recent improvements in node itself?
Last actually note-worthy improvement I heard of was properly supporting import/export (although do you still need to use the .mjs hack?), but I've been out of the loop here for sometime so would be nice to know what they've added since.