Understanding Ruby's Bang Methods

The article discusses the concept of Ruby's bang methods and how they differ from their non-bang counterparts. It explains that bang methods are often considered dangerous as they can mutate the underlying object and may have subtle differences compared to their non-bang versions. The article provides an example using the Array#reject! method to illustrate these differences. It shows that reject! returns nil if there's nothing to reject, unlike reject which returns a new array. The author also suggests using alternative methods like Array#delete_if or using tap with reject! for safer mutation. The article concludes by clarifying that the bang (!) in method names doesn't necessarily indicate destructiveness, but rather signifies that the bang version is more dangerous and should be handled with care. This information is valuable for developers working with Ruby who want to understand the nuances of bang methods and make informed decisions when using them.