Array.prototype.lastIndexOf Codemod

Introduction

This codemod replaces the usage of Array.prototype.lastindexof with the standard lastIndexOf method on the Array prototype. The goal is to eliminate non-standard method names, ensuring compatibility with native JavaScript features while improving code readability and maintainability.

Before

const arr = [1, 2, 3, 4, 5];
const index = arr.lastindexof(3);

After

const arr = [1, 2, 3, 4, 5];
const index = arr.lastIndexOf(3);