Returning an "Add" Function

Published by bangyen in
closureshigher_order_functionslanguage_fundamentalsnumbers

Given a number, n, return a function which adds n to the number passed to it.

Examples

add(10)[20] ➞ 30

add(0)[20] ➞ 20

add(-30)[80] ➞ 50

Notes

  • All numbers used in the tests will be integers (whole numbers).
  • Returning a function from a function is a key part of understanding higher order functions (functions which operate on and return functions).
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