The _.chunk method is a lodash array method that can be used to break a linear array into an array of arrays of a given length. The need to do this comes up now and then and the chunk method helps to make quick work of this, and allow me to move on with a project rather than writing this usual suspect from scratch.
So when it comes to doing the opposite of _.chunk and quickly turning an array of arrays back into a simple linear array there is the _.flatten method as well.
The zip method takes two or more arrays and zips theme together.
If you enjoyed this post you might want to check out my main post on lodash in general.