truthy-falsy.js

// truthy & falsy 
console.log(Boolean(0));
console.log(Boolean(undefined));
console.log(Boolean(true));
console.log(Boolean(false));

var money = 0;
if( money=10){

    console.log(`Don't spend all money`);
}

else{
    console.log(`You should get a job `);
}

let height ;
if (height)
{
    console.log(`Height is defined`);
}
else
{
    console.log(`Height is not defined`);
}