Prefixes vs. Suffixes

Published by Helen Yu in
regexstringsvalidation

Create two functions: isPrefix(word, prefixer-) and isSuffix(word, -suffixer).

  1. isPrefix should return true if it begins with the prefix argument.
  2. isSuffix should return true if it ends with the suffix argument.

Otherwise return false.

Examples

isPrefix("automation", "auto-") ➞ true

isSuffix("arachnophobia", "-phobia") ➞ true

isPrefix("retrospect", "sub-") ➞ false

isSuffix("vocation", "-logy") ➞ false

Notes

The prefixer and suffixer arguments have dashes - in them.

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