VIDEO 19 javascript

///////////////****** FUNCTIONS IN JS  ********////////////////////


/// Basic function 
function NAME(){
    console.log("i");
    console.log("love");
    console.log("you");
}
NAME() /// calling the function 

// function of adding two number 
function add2number(number1 , number2){ // number1 , number2 are called parameters
    console.log(number1 + number2);
}
add2number(20,30)  // here what we pass are called arguments , here 20 ,30.




// function of adding two number (SECOND METHOD )
function addtwonumber(number1 , number2){ 
    let result = number1 + number2
    return result
    console.log("om"); /// this will not execute because it is after return function
}

const result = addtwonumber(3,5)
console.log("result is equal to", result); ///8 


/// function of adding two number (THIRD METHOD )

function addtwonumbers(number1 , number2){ 
   return number1 + number2
    
}

const result2 = addtwonumbers(7,5)
console.log("result is equal to", result2); ///12

//////// basic confusion in terms of return function 

function login(username="sammy"){
    if(username === undefined){
        console.log("please enter your name ");
        return
    }
    return `${username} just logged in `
    
}
console.log(login("TANISHQ DHINGRA" )); //TANISHQ DHINGRA just logged in 
console.log(login()); //sammy just logged in