如何不使用 node-pty 和 xterm 在终端中打印命令？

Question

I'm using xterm.js, node-pty, and electron to build a node repl like terminal (similar to repl.it). I'm using this piece of code to run the file and output it to the terminal:

ptyProcess.write("vm.runInNewContext(fs.readFileSync('dir/file.js', 'utf8'))\\r")

But I always get this printed to the terminal:

> vm.runInNewContext(fs.readFileSync('dir/file.js', 'utf8'))
5
>

I know ptyProcess.write() writes to the terminal, but is there a way to run a command without printing it to the terminal? How can I get the terminal to print something like this:

>
5
>

Answer 1

use ptyProcess.on('data', function(data){}) to filter data

xterm.js docs link: onevent-callback