The .slice() method can be used on code example

Example 1: use of slice and splice add elements array

function frankenSplice(arr1, arr2, n) {
  // Create a copy of arr2.
  let combinedArrays = arr2.slice()
  //                   [4, 5, 6]

  // Insert all the elements of arr1 into arr2 beginning
  // at the index specified by n. We're using the spread
  // operator "..." to insert each individual element of 
  // arr1 instead of the whole array.
  combinedArrays.splice(n, 0, ...arr1)
  //                   (1, 0, ...[1, 2, 3])
  //                   [4, 1, 2, 3, 5, 6]

  // Return the combined arrays.
  return combinedArrays
}

frankenSplice([1, 2, 3], [4, 5, 6], 1);

Example 2: array.slice

const animals = ['ant', 'bison', 'camel', 'duck', 'elephant'];

console.log(animals.slice(2));
// expected output: Array ["camel", "duck", "elephant"]

console.log(animals.slice(2, 4));
// expected output: Array ["camel", "duck"]

console.log(animals.slice(1, 5));
// expected output: Array ["bison", "camel", "duck", "elephant"]

Example 3: slice()

/"slice() copies or extracts a given number of elements to a new array"/

let weatherConditions = ['rain', 'snow', 'sleet', 'hail', 'clear'];

let todaysWeather = weatherConditions.slice(1, 3);
// todaysWeather equals ['snow', 'sleet'];
// weatherConditions still equals ['rain', 'snow', 'sleet', 'hail', 'clear']

Example 4: array.slice in typescript

arr.slice([start[, end]])