// first Example
const drop = (arr, n) => {
for(let i = 0; i < n; i++) {
arr.shift(arr[i])
}
return arr;
}
console.log('drop', drop([1, 2, 3], 1))
// second example
const drop = (arr, n) => {
return arr.slice(n)
}
console.log('drop', drop([1, 2, 3], 1))
Explanation:
-
Function Signature:
function drop(arr, n = 1)
: This function takes two arguments: -
arr
: The input array from which elements will be dropped. -
n
: The number of elements to drop from the beginning of the array. It defaults to1
if not provided. -
Slice Method: The
slice
method is used to return a shallow copy of a portion of an array into a new array. The method takes two arguments: - The start index (
n
in this case). - The end index (not provided here, so it slices to the end of the array).
Example:
-
drop([1, 2, 3], 1)
starts the slice at index1
, so it returns[2, 3]
.
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