How to Get Array Length in Ruby

How to Get Array Length in Ruby ?

Answer

To get the length of an array in Ruby, you can use the length method.


✐ Examples

1 Length of Integer Array

In this example,

  1. We create an integer array named numbers with some values.
  2. We use the length method to get the length of the array and store the returned value in length variable.
  3. Finally, we shall print the value in length to standard output.

Ruby Program

numbers = [1, 2, 3, 4, 5]
length = numbers.length
puts "Length of array is: #{length}"

Output

Length of array is: 5

2 Length of String Array

In this example,

  1. We create a string array named names with some strings.
  2. We use the length method to get the length of the array and store the returned value in length variable.
  3. Finally, we shall print the value in length to standard output.

Ruby Program

names = ["Alice", "Bob", "Charlie"]
length = names.length
puts "Length of array is: #{length}"

Output

Length of array is: 3

Summary

In this tutorial, we learned How to Get Array Length in Ruby language with well detailed examples.


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