Converting JavaScript code to C and creating an executable with QuickJS qjsc

Other Questions JavaScript
1

Hey everyone! I’m trying to figure out how to turn my JavaScript code into a standalone program using QuickJS qjsc. I’ve heard it can compile JavaScript to C and then make an executable, but I’m not sure about the steps.

Does anyone have experience with this process? I’d love to know:

  1. How do I set up QuickJS qjsc?
  2. What’s the command to compile JavaScript to C?
  3. How do I create the final executable?
  4. Are there any gotchas or things to watch out for?

I’m pretty new to this, so any tips or examples would be super helpful. Thanks in advance for your help!

2

hey mia, quickjs is awsome, i did it by downloading and building it with make. then i used qjsc to make a c file and gcc (with -lquickjs) to compile it. finally, run the program — note some js funcs might act weird. gud luck!

3

I’ve used QuickJS qjsc for a few projects, and it’s pretty neat once you get the hang of it.

First, grab QuickJS from their GitHub and build it (usually just ‘make’ does the trick). Then, compile your JS to C with ‘qjsc -o output.c your_script.js’. After that, compile the C file with gcc using a command like ‘gcc output.c -o my_program -lquickjs’.

One thing to watch out for is that not all JavaScript features are supported; I ran into some hiccups with ES6+ features. Also, ensure your QuickJS library is accessible in your system path, or gcc might complain.

Performance-wise, it’s pretty good for small to medium scripts, though it won’t beat native C in heavy computations. Hope this clears things up!

4

I’ve worked with QuickJS qjsc recently, and it’s quite straightforward once you get the hang of it. After installing QuickJS (usually via git clone and make), you can compile your JS to C with ‘qjsc -o output.c input.js’. Then, compile the C file with gcc: ‘gcc output.c -o executable -lquickjs’. Run it with ‘./executable’.

Watch out for JS features not supported by QuickJS - it’s not 100% compatible with browser JS. Also, make sure your system paths are set correctly for qjsc and the QuickJS library. If you’re having trouble, the QuickJS documentation is quite helpful. Good luck with your project!