VIDEO 14 javascript

/////////////////*********ARRAYS IN JS*********///////////////
const arr =[0,1,2,3,4,5]
const heros = ["srk","sk", "akki"]

console.log(arr[1]);

const arr2 = new Array(1,2,3,4,5,5)
console.log(arr2[1]);

////////// array methodss/////////////////////


arr.push(6) /// adding elements in array 
arr.push(7)
console.log(arr); 

arr.pop()/// remove last element in array
console.log(arr);

arr.unshift(9) //// adding at first 
console.log(arr);

arr.shift() //// removed 9
console.log(arr);

console.log(arr.includes(9));/// boolean outcomes 
console.log(arr.indexOf(2));/// index at prsented elemensted

const newArr = arr.join()
console.log(newArr);/// prints without square braces  
console.log(typeof newArr); /// changes number into string beacuse we used join() method


//////// slice  method
console.log("a" , arr);

const myn1 = arr.slice(1,3) // 1 and 2 will be printed 
console.log("after slicing ",myn1);
console.log("original copy will be same as a " , arr); 
 

///////splice method
const myn2 = arr.splice(1,3) // 1 , 2 and 3  will be printed 
console.log("after splicing ",myn2);
console.log("splice elements will be deleted " , arr); ///it will deleted the splice part 

//// inportant for interview question !!!!!!!!!!!

/* the difference bw slicing and splicing 
slicing - will print 1 less than the final index and not effect the orginal copy..
spkicing - will print all the elements and delete all spliced elements from the original array*/