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A Common-Sense Guide to Data Structures and Algorithms in JavaScript, Volume 1
book

A Common-Sense Guide to Data Structures and Algorithms in JavaScript, Volume 1

by Jay Wengrow
August 2024
Intermediate to advanced
516 pages
11h 47m
English
Pragmatic Bookshelf
Content preview from A Common-Sense Guide to Data Structures and Algorithms in JavaScript, Volume 1

Insertion Sort

We’ve previously encountered two different sorting algorithms: Bubble Sort and Selection Sort. Both have efficiencies of O(N2), but Selection Sort is actually twice as fast. Now you’ll learn about a third sorting algorithm called Insertion Sort that will reveal the power of analyzing scenarios beyond the worst case.

Insertion Sort consists of the following steps:

  1. In the first pass-through, we temporarily remove the value at index 1 (the second cell) and store it in a temporary variable. This will leave a gap at that index, since it contains no value:

    images/optimizing_for_optimistic_scenarios/insertion_sort_1.png

    In subsequent pass-throughs, we remove the values at the subsequent indexes.

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Publisher Resources

ISBN: 9798888651131Errata Page