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Strange-Pair
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README.md

Strange Pair

by Helen Yu tags: strings, language_fundamentals, validation

Summary

A pair of strings form a strange pair if both of the following are true: The 1st string's first letter = 2nd string's last letter. The 1st string's last letter = 2nd string's first letter. Create a function that returns true if a pair of strings constitutes a strange pair, and false otherwise. Examples isStrangePair("ratio", "orator") ➞ true // "ratio" ends

Instructions

A pair of strings form a strange pair if both of the following are true:

  • The 1st string's first letter = 2nd string's last letter.
  • The 1st string's last letter = 2nd string's first letter.

Create a function that returns true if a pair of strings constitutes a strange pair, and false otherwise.

Examples

isStrangePair("ratio", "orator") ➞ true
// "ratio" ends with "o" and "orator" starts with "o".
// "ratio" starts with "r" and "orator" ends with "r".

isStrangePair("sparkling", "groups") ➞ true

isStrangePair("bush", "hubris") ➞ false

isStrangePair("", "") ➞ true

Notes

It should work on a pair of empty strings (they trivially share nothing).