Web Reference: Define String.prototype.toAlternatingCase (or a similar function/method such as to_alternating_case / toAlternatingCase / ToAlternatingCase in your selected language; see the initial solution for details) such that each lowercase letter becomes uppercase and each uppercase letter becomes lowercase. Code along with me as we solve 'altERnaTIng cAsE', a Level 8 kyu #javascript #codewars challenge. Here's a link to the challenge: https://www.codewars.com/ka... Codewars' assertion methods under Test are still defined. However, those are wrappers around Chai assertions for backwards compatibility. Any new tests should not use them and existing tests should consider using Chai directly. Starting from Node 12.x, Test is no longer defined.
YouTube Excerpt: this one uses an if..else statement, the toUpperCase() method, and more kata link: ...
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