Answer Posted / Ajeet Kumar Rawat

The 'ensure' keyword in Ruby is used in combination with 'begin' and 'rescue'. It ensures that a block of code gets executed no matter whether an exception occurs during the execution of the 'begin-rescue' block or not. The 'ensure' block is always executed after the 'begin-rescue' blocks, providing an opportunity to clean up resources such as closing files or network connections.

Tell me the role of modules and mixins in ruby?

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