// Array :- It is collection more the single value inside an variable // from() :- create the new array which hold the shallow copy of the (it will change the original array because shallow copy shares the same reference) // Array.from(object,map_fun,thisArg); // object: It is the name of the array-like or iterable object on which from() method will be applied. // map_fun: It is an optional parameter used for calling the elements of the array via map() function. // thisArg: An optional parameter whose value is used as 'this' when we execute the map_fun const arr=Array.from({length:5},(_,index) =>index+1); console.log(arr);