{ "item_title" : "Arrays - Beginner →", "item_author" : [" Flannan P. Brody "], "item_description" : "Level: Beginner → Intermediate → Advanced (all volumes in one book).Stop memorizing array solutions. Start seeing why they work.Arrays - Beginner → Intermediate → Advanced - JavaScript Edition brings all three volumes together: 166 array algorithms taught through plain-language explanations, JavaScript implementations, and step-by-step visual walkthroughs. Nine primers on the habits every array problem depends on - from off-by-one errors and loop patterns to matrix fundamentals and a repeatable way to approach any problem - open the book. Every algorithm is shown in full color, so pointers, windows, and changing values stand apart at a glance and are easy to trace.Watch two pointers converge from both ends of an array. Follow a sliding window as it grows and shrinks. See a hash map count frequencies in a single pass, and track a matrix as it rotates layer by layer. Instead of holding every changing index in your head, follow the execution on the page.The visual walkthroughs use small multiples, a data visualization technique that presents successive stages of an algorithm as a series of consistently structured diagrams. By seeing meaningful stages together, you can compare states, follow what moves, and understand how each decision affects the next. This brings the algorithm to life, reinforcing understanding and helping the underlying patterns and mechanics stay with you longer.Every main algorithm is presented in three complementary parts: Understanding & Reasoning: Learn the goal, key idea, edge cases, and time and space complexity before studying the implementation.Inspect & Debug: Examine JavaScript code alongside an AI-Era Interview Lens that challenges you to question assumptions, recognize plausible mistakes, and explain why a solution is correct.Trace & Walkthrough: Follow the input through intermediate states to the result, with visual explanations of the decisions that matter.The twenty-three pattern families run from two pointers, sliding windows, and prefix sums, through hashing, rotations, stacks, and backtracking, to matrix traversal, grid paths, and number theory.Arrays look like the simplest structure in computer science - right up until one off-by-one index turns a working loop into a wrong answer. This book is about building the instincts that keep every index honest.Every code sample was compiled, tested against edge cases beyond what's printed on the page, and independently reviewed before making it into the book.Designed for readers with basic JavaScript knowledge who want to strengthen coding interview preparation, debugging, and algorithmic reasoning.This edition contains every algorithm and primer from Arrays - Vol 1 (Beginner), Volume 2, and Volume 3 - JavaScript Edition in a single book.Understand the idea. Follow the state. Explain the result.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/9/79/818/289/9798182897501_b.jpg", "price_data" : { "retail_price" : "89.95", "online_price" : "89.95", "our_price" : "89.95", "club_price" : "89.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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