js_functions.js

//calc cati ani ai
function calculateAge(yearOfBirth) {
    var age = 2016 - yearOfBirth;
    return age; 
}
var ageJohn = calculateAge(1990);
var ageMike = calculateAge(1969);
console.log(ageJohn);

//cat mai ai pana la pensie
//calling another function
function yearsUntilRetirement(name, year) {
    var age = calculateAge(year);
    var retirement = 65 - age;
    //pui aici console.log ca sa nu mai pui pt fiecare persoana
    if (retirement >= 0) {
        console.log(name + ' retires in ' + retirement + ' years');
    } else {
        console.log( name + ' is already retired');
    }
}
yearsUntilRetirement('John', 1990);
yearsUntilRetirement("Mary", 1948);


// in JS, functiile nu tre sa returneze neaparat ceva

//function statement just performs an action
//function expression PRODUCES A VALUE, an outcome
//var someFun = function(par) { //code  }  asta e  function expression