How to run a process in a loop in javascript?

Question

JavaScript

I have code:

var exec = require('child_process').exec;
var cmd = exec('somethingProccess');

//cmd.stdout.on('data', function(data) {
//    console.log(data); 
//});

cmd.stdout.pipe(process.stdout);

So I can't do it:

while(1==1){
cmd.stdout.pipe(process.stdout)
}

, because the process will run second and third parallel to the first. I need the second process to start only after the first one finishes, the second ... like the third, and so on ....
I need to start the process immediately after it has finished, any ideas?

Answer 1

exec() - 3 argument callback?

Answer 2

Look at async and promise