script.js

/* without function
var a = 10;
var b = 20;
var c = a+b;
console.log(c);
*/

/*
with function but no return
function add(a,b){
    console.log(a+b);
}
function sub(a,b){
    console.log(a-b);
}
add(10,20)
sub(20,10)
*/
/*
 function arithmetic(a,b){
    console.log(a+b);
    console.log(a-b);
    console.log(a*b);
    console.log(a%b);
 }
 arithmetic(60,20)
 */

 /*
 //Normal Function:-
 // Print even numbersin an array[1,2,3,4,5,6,7,8,9,10]
var result =[];
function even(arr){
    for(var i=0;i<=arr.length-1;i=i+1)
    {
        if(arr[i]%2===0){
            result.push(arr[i])
        }
    }
    return result
}
console.log(even([1,2,3,4,5,6,7,8,9,10]))
*/

/*
//Annonyomus Function
var result =[];
var a = function (arr){
    for(var i=0;i<=arr.length-1;i=i+1)
    {
        if(arr[i]%2===0){
            result.push(arr[i])
        }
    }
    return result
}
console.log(a([1,2,3,4,5,6,7,8,9,10]))
*/

/*
//IIFE Function
var result = [];
(function (arr){
    for(var i=0;i<=arr.length-1;i=i+1)
    {
        if(arr[i]%2===0)
        {
            result.push(arr[i])
        }
    }
    console.log(result);
})([1,2,3,4,5,6,7,8,9,10])
*/

/*
//Arrow Function
var result =[];
var even = (arr) =>{
    for(var i=0;i<=arr.length-1;i=i+1)
        {
            if(arr[i]%2===0)
            {
                result.push(arr[i])
            }
        }
        return result
}
console.log(even([1,2,3,4,5,6,7,8,9,10]))
*/

/*
//Do While loop
let a = 0;
do{
    a += 1;
    console.log(a);
}
while(a<5)
*/


// while loop
let a = 0;
let b = 0;
while (a<3){
    a++;
    b += a;
}