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Decode the Coding Interview in JavaScript: Real-World Examples

DIY: UTF-8 Validation

Understand how to validate UTF-8 encoding in data arrays by applying rules for 1 to 4 byte characters. Learn to analyze byte sequences for correct format and develop a function to verify encoding validity, improving your skills in cybersecurity and data encoding validation.

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Problem description

Given an integer array data, return whether it is a valid UTF-8 encoding.

A character in UTF8 can be from 1 to 4 bytes long, subject to the following rules:

  • For a 1 byte character, the first bit of the packet is 0, followed by its Unicode code.
  • For an n-bytes character, the first
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