December 25 - Create an Immutable Array in Ruby
In this coding exercise you'll learn how to create an immutable array in Ruby.
Guide Tasks
- Read Tutorial
- Watch Guide Video
- Complete the Exercise
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Summary
Create an immutable array in Ruby.
Exercise Description
Given the following array:
[1, 2, 3]
Update the array so that it cannot be changed. If an attempt is made to alter the array, it should raise a runtime error
Example Process
[1, 2, 3] << 4 # ~> RuntimeError: can't modify frozen Array
Real World Usage
Converting an array to be immutable is a process utilized on a daily basis in data science. Since it's vital to be confident that collection data will be consistent, this feature is very important for building big data algorithms.