What does the lodash flow function do?

Question

I am reading some code that uses _.flow() from lodash and the explanation in the docs just isn\'t making sense to me.

The doc says

Creates a

Answer 1

Rewording the definition from the docs in simpler terms: It calls, in order, the methods in the array. It uses the result from each function as the parameters for the next function. In the case of the example given, the steps are as follows:

1. Invokes _.add(1, 2), which returns 3.
2. Passes that return value as the parameter to the next function in the array, which becomes square(3). This returns 9.