JS Splice Remove or add elements from a location in an array

Inserting or deleting an element using the splice () method requires the following three parameters
-Start index (where you want to start adding elements)
-the number of elements to delete, which is 0 when the element is added
-Elements that you want to add into the array

varNums = [1,2,3,4,5,6]nums.splice (3,0,1,0,2); Nums//operating Results [1, 2, 3, 1, 0, 2, 4, 5, 6]varNums = [1,3]nums.splice (2,0,1,0,2); Nums//operating Results [1, 3, 1, 0, 2]  //Delete ElementvarNums = [1,2,3,4,5,6]nums.splice (2,3); Nums//operating Results [1, 2, 6]varNums = []nums.splice ()//Nums.splice, it's useless to delete more.Nums//running Results [1]

JS Splice Remove or add elements from a location in an array