Node js grabbing failure

Question

I recently started learning node js and using online tutorials.

I am trying to grab the user name and a little greeting but it keeps failing to get it. There is a if statement to check if it fails, if it does it will output "you blew it". Here is the code:

function grab(flag){
    var index = process.argv.indexOf(flag);
    return (index==-1) ? null : process.argv[index+1]
}

var greeting = grab('--greeding');
var user = grab('--user');

if (!user || !greeting){
    console.log("you belew it")
}else {
    console.log('welcome ${user}, ${greeting}');
}

This is the way I am passing data

node app.js --user Stack --greeting "hello"

Answer 1

Change

grab('--greeding');

to

grab('--greeting');

Be careful