HackerRank Ruby Array – Addition problem solution YASH PAL, 31 July 202429 January 2026 In this HackerRank Ruby Array – Addition problem solution Arrays provide a variety of methods that allow to add elements to them.push allows one to add an element to the end of the list. >x = [1,2] >x.push(3) => [1,2,3]insert allows one to add one or more elements starting from a given index (shifting elements after the given index in the process). >x = [1,2] >x.insert(1, 5, 6, 7) => [1, 5, 6, 7, 2]unshift allows one or more elements to be added at the beginning of the list. >x = [1,2,3] >x.unshift(10, 20, 30) => [10, 20, 30, 1, 2, 3]In this challenge, your task is to complete three functions that take in the array arr andAdd an element to the end of the listAdd an element to the beginning of the listAdd an element after a given index (position)Add more than one element after a given index (position)HackerRank Ruby Array – Addition problem solution.def end_arr_add(arr, element) # Add `element` to the end of the Array variable `arr` and return `arr` arr.push(element) end def begin_arr_add(arr, element) # Add `element` to the beginning of the Array variable `arr` and return `arr` arr.unshift(element) end def index_arr_add(arr, index, element) # Add `element` at position `index` to the Array variable `arr` and return `arr` arr.insert(index, element) end def index_arr_multiple_add(arr, index) # add any two elements to the arr at the index arr.insert(index, 4, 2) end Second solution.def end_arr_add(arr, element) # Add `element` to the end of the Array variable `arr` and return `arr` arr.push( element ) end def begin_arr_add(arr, element) # Add `element` to the beginning of the Array variable `arr` and return `arr` arr.unshift( element ) end def index_arr_add(arr, index, element) # Add `element` at position `index` to the Array variable `arr` and return `arr` arr.insert( index, element ) end def index_arr_multiple_add(arr, index) # add any two elements to the arr at the index arr.insert( index, 'foo', 'bar' ) end coding problems solutions Hackerrank Problems Solutions Ruby Solutions HackerRankruby