List different ways of empty an array in Javascript?

In Javascript, there are many ways to empty an array in Javascript, below we have listed 4 major

• By assigning an empty array.

  var arr1 =[1,4,5,6];
  arr1=[];
  

• By assigning array length to 0.

  var arr2 =[1,4,5,6];
  arr2.length=0;
  

• By poping the elements of the array.

  var arr2 =[1,4,5,6];
  while(arr.length > 0) {
      arr.pop();
  }
  

• By using .splice() .

  var arr =[1,4,5,6];
  arr.splice(0,arr.length)