How to Convert a Set of Strings to a Set of Integers in Ruby - Step by Step Examples

How to Convert a Set of Strings to a Set of Integers in Ruby ?

Answer

In Ruby, you can convert a set of strings to a set of integers using the map method to iterate over each element and the to_i method to convert each string to an integer.


✐ Examples

1 Convert a Set of Strings to a Set of Integers using map Method

In this example,

  1. We have a set named string_set1 containing the elements '1', '2', '3', '4', '5'.
  2. We use the map method to iterate over each element of string_set1.
  3. Within the block, we convert each string element to an integer using the to_i method.
  4. We print the resulting int_set1 to the console.

Ruby Program

require 'set'

string_set1 = Set.new(['1', '2', '3', '4', '5'])
int_set1 = string_set1.map(&:to_i)
puts int_set1

Output

1
2
3
4
5

2 Convert a Set of Strings to a Set of Integers using each Method

In this example,

  1. We have a set named string_set2 containing the elements '10', '20', '30', '40', '50'.
  2. We use the each method to iterate over each element of string_set2.
  3. Within the block, we convert each string element to an integer using the to_i method and add it to int_set2.
  4. We print the resulting int_set2 to the console.

Ruby Program

require 'set'

string_set2 = Set.new(['10', '20', '30', '40', '50'])
int_set2 = Set.new
string_set2.each { |str| int_set2.add(str.to_i) }
puts int_set2

Output

#<Set: {10, 20, 30, 40, 50}>

Summary

In this tutorial, we learned How to Convert a Set of Strings to a Set of Integers in Ruby language with well detailed examples.


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