//functions in js

/**

* Function is a block of code which we can reuse any where in he program to call set of code or instruction

* ex :-

* function addTwoNumbers(num1,num2){

* console.log(num+num2)

* }

*/

function sayMyName() {

console.log("Vikas chenna");

}

// sayMyName();

function addTwoNumbers(num1, num2) {

console.log(num1 + num2);

}

// addTwoNumbers(5,4);

let myfun = function addThreeNum(num1,num2,num3){

console.log(num1+num2+num3);

}

// console.log(myfun(5,5,5));

function sumTwo(num1,num2){

return num1 + num2

}

let printSumTwo = sumTwo(5,6);

// console.log(printSumTwo);

///we can pass objects in functions

let user = {

name : "vikas",

age : 25,

email : "vikas@gmail.com"

}

function printName(anyObject){

console.log(`hello ${anyObject.name} your email is ${anyObject.email} is registered`);

}

printName(user)

// or

printName({

name:"vikas chenna",

age:25

})

let myArray = [1,2,4,5,6]

function printArray(anyArray){

console.log(anyArray[2]);

}

// printArray(myArray)

// or

printArray([1,2,"Vikas chenna",4,5])

//we can pass more than 1 parameters and also can be print using ( rest operator (...) )

function addToCart(...numbers){

console.log(numbers);

}

addToCart(10,20,30,40,50,30,4,5,80,90,100)

function addToCart1(val1,val2,...numbers){

console.log(numbers);

}

addToCart1(10,20,30,40,50,30,4,5,80,90,100) //10 and 20 assiign in val1 and val2 rest of numbers assign in ...numbers