javascript stdout.on code example
Example 1: node spawn
const { spawn } = require('child_process');
const ls = spawn('ls', ['-lh', '/usr']);
ls.stdout.on('data', (data) => {
console.log(`stdout: ${data}`);
});
ls.stderr.on('data', (data) => {
console.error(`stderr: ${data}`);
});
ls.on('close', (code) => {
console.log(`child process exited with code ${code}`);
});
Example 2: how to return when child process is complete in node js
var child = require('child_process').exec('python celulas.py')
child.stdout.pipe(process.stdout)
child.on('exit', function() {
process.exit()
})
Example 3: how to return when child process is complete in node js
var execSync = require('exec-sync');
var user = execSync('python celulas.py');