Make an online compiler using React as frontend and wasm to compile the written code

I am working on a simple project that uses React as frontend with a textbox,and the text box is used by the user to write code. I want to compile that piece of code using web-assembly(wasm) and then display the results back on the screen. I have no issue in developing the frontend, the major problem to be solved here is how to fetch the written code from the text-box and then compile it in wasm bundle to get output. If anyone out there who has experience with wasm projects please help me out on this one and get paid!