Build a 3×3 grid of light cells (omitting the center cell),where you can click on the cells to activate them (turn green). When all the cells have been activated,they will be deactivated one-by-one in the reverse order they were activated,with a 300ms interval in between. A practical UI problem involving event ordering, async timing, and…

Problem Description (Original) 1. Problem You are given a simple web page layout with a navigation menu: The page initially loads only the basic structure. 2. Solution / Requirement Implement lazy loading, where content is loaded only when needed, instead of loading everything at page initialization. You are also required to add content dynamically to…

Problem Description You are given a sorted list of distinct integers ranging from 0 to 99. For example: Your task is to produce a string that describes the numbers missing from the list. In this example, the missing numbers are: Examples This problem asks you to scan a sorted list of integers and generate a…

Problem Description There are a total of numCourses courses you have to take, labeled from 0 to numCourses – 1. You are given an array prerequisites where prerequisites[i] = [ai, bi] indicates that you must take course bi first if you want to take course ai. For example, the pair [0, 1] indicates that to…