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Single Mutation

Explore how to build a function that determines if two strings are identical or differ by only one character mutation. Understand handling insertions, deletions, and substitutions efficiently while mastering a dual-index loop technique for comparing strings with time complexity O(n). Develop your problem-solving skills with advanced string manipulation methods essential for JavaScript interviews.

Single Mutation

Instructions

There are 3 types of possible string mutations: character insertion, character deletion, or character substitution. Write a function that accepts 2 strings and returns true if the strings are the same except for 0 or 1 mutations. Return false otherwise.

Inputs: String, String

Output: Boolean

Examples:

  • Single Deletion:

    • 'abcd', 'abc'
    • 'abcd', 'acd'
  • Single Insertion: ...