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Grokking the Coding Interview Patterns in JavaScript

Solution: Decode String

Explore how to decode encoded strings using a stack-based approach in JavaScript. This lesson helps you understand managing nested and sequential patterns, processing characters for repeat counts and substrings, and building the decoded result efficiently. You will gain practical skills in handling complex string decoding scenarios with stacks, improving problem-solving in coding interviews.

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Statement

Given an encoded string, return its decoded version. The encoding rule follows the pattern: k[encoded string]k[encoded~string], where the encoded stringencoded~string is repeated exactly kk times.

Note: The kk is guaranteed to be a positive integer.

Assume that the input string is ...