Reverse Array
// Reverse Array.......
Array.prototype.ReverseArray=function(){
for(let i=0;i<Math.floor((this.length)/2);i++){
let temp=this[i];
this[i]=this[this.length-i-1];
this[this.length-i-1]=temp
}
return this;
}
let a=[1,2,3,4,5]
a.ReverseArray()
console.log(a)