array.js

let arr=Array(2,3,4,2)
// console.log(arr[0]);

// console.log(Array.isArray(2));//Returns true if it is array.

// let val=arr.indexOf(4)
// console.log(val)//It will return the index of 4


//Modifying arrays

// arr.push(09)
// console.log(arr);//Push the no at the end

// arr.unshift(89)
// console.log(arr);//Push the no at starting

// arr.pop(9)//It will remove the no from the array.
// console.log(arr);

// arr.splice(0,3)
// console.log(arr);//it will remove the no from the 1st index to the 3rd index.

//  arr.reverse()
//  console.log(arr)//It will reverse the array.


// arrr=Array(1,1,1)
// arr=arr.concat(arrr)
// console.log(arr);//It will concat the arr to arrr.