What are some use cases for lambdas in Ruby?

What are some use cases for lambdas in Ruby?

Lambdas in Ruby are often used for creating concise, reusable code blocks. Common use cases include callbacks, event handling, and functional programming patterns.

Can you give me an example of a lambda used as a callback?

Sure! Here's a simple example: you can define a lambda to handle a button click event in a GUI application. When the button is clicked, the lambda executes a specific action.

How do lambdas differ from regular methods?

Lambdas are anonymous functions that can be defined inline, while methods are named and defined with the def keyword. Lambdas also enforce argument checking, unlike methods.

Are there performance benefits to using lambdas?

Yes, lambdas can lead to more efficient code by reducing the overhead of method calls, especially in scenarios where functions are passed around frequently.

Can lambdas capture variables from their surrounding scope?

Absolutely! Lambdas can capture and remember variables from their surrounding context, which is known as closure.