Quick Answer

Handle missing array methods.

Understanding the Issue

This error occurs when calling non-existent methods on array objects.

The Problem

This code demonstrates the issue:

Ruby Error 
arr = [1, 2, 3]
arr.nonexistent_method

The Solution

Here's the corrected code:

Ruby Fixed 
# Check method existence
if arr.respond_to?(:method_name)
  arr.method_name
end

# Convert to required type
arr.to_s.some_string_method

# Duck typing
arr.each { |x| x.some_method }

# Documentation check
# Verify Array class methods

Key Takeaways

Verify array capabilities before method calls.