How to chain functions without using prototype?

Question

I have a bunch of useful functions that I have collected during my whole life.

function one(num){
    return num+1;
}

function two(num){
    return num+2;
}         


        

Answer 1

Another alternative is to use lodash flow function. For example:

var five = _.flow(one, two, two)
five(5)

I prefer assigning a new chain to a variable. It gives it a clear name and encourages re-use.

Btw, lodash also helps in passing additional arguments to the functions of the chain. For example:

var addFive = _.flow(
   _.partialRight(_.add, 1),
   _.partialRight(_.add, 2),
   _.partialRight(_.add, 2)
)

There are many other useful functions to help in functional chaining, e.g., partial, spread, flip, negate, etc.