Today I Learned

hashrocket A Hashrocket project

I need to iterate with an index! With index!

You need an index while iterating over your collection, right?

> a = ['apple', 'orange', 'banana'];
> {|fruit, index| puts index}

with_index is a method on Enumerator, and map returns an Enumerator.

See More #ruby TILs
Looking for help? Each developer at Hashrocket has years of experience working with Ruby applications of all types and sizes. We're an active presence at Ruby conferences, have written some of the most popular gems, and have worked on many of the web's Ruby on Rails success stories. Contact us today to talk about your Ruby project.