How to wait for a child process to finish in Node.js?

Question

I\'m running a Python script through a child process in Node.js, like this:

require(\'child_process\').exec(\'python celulas.py\', function (error, stdout, s         


        

Answer 1

NodeJS supports doing this synchronously. Use this:

const exec = require("child_process").execSync;

var result = exec("python celulas.py");

// convert and show the output.
    console.log(result.toString("utf8");

Remember to convert the buffer into a string. Otherwise you'll just be left with hex code.