How can I use the select method in Ruby?

How can I use the select method in Ruby?

The select method in Ruby is used to filter elements from an array based on a condition. It returns a new array containing all elements for which the given block returns a true value.

Can you give me an example of using select?

Sure! Here's a simple example: array = [1, 2, 3, 4, 5]; even_numbers = array.select { |num| num.even? } will return [2, 4].

What if I want to select based on a string condition?

You can use select with strings too! For example: words = ['apple', 'banana', 'cherry']; long_words = words.select { |word| word.length > 5 } will return ['banana', 'cherry'].

Are there any performance considerations when using select?

Yes, if you're working with large arrays, be mindful that select creates a new array, which can consume more memory. Consider using each if you don't need a new array.