Legacy JavaScript Algorithms and Data Structures V7 | freeCodeCamp.org

Learn to Code — For Free

Overview

Added

March 18, 2026

Subject & domain

coding · programming-languages-syntax

Grade range

Grade 9 (Freshman)–Grade 12 (Senior)

Page kind

Course

Keywords

pythonjavascriptjsgitgithubwebsitewebdevelopmentfreecodecampcoursecourseshtmlcssreactreduxapifrontbackendlearntutorialprogramming

Introduction

Legacy JavaScript Algorithms and Data Structures Certification

  • Purpose: This certification focuses on teaching the fundamentals of JavaScript to enable web interactivity, moving beyond basic HTML and CSS.
  • Core Concepts Covered:
    • Variables, arrays, objects, loops, and functions.
    • Programming paradigms: Object-Oriented Programming (OOP) and Functional Programming (FP).
  • Practical Application: Students apply their knowledge by building algorithms to manipulate strings, factorialize numbers, and perform complex calculations (e.g., calculating the orbit of the International Space Station).
  • Curriculum Structure: The course is divided into several progressive sections, starting with "Basic JavaScript" and moving through advanced topics including:
    • ES6 (ECMAScript 6)
    • Regular Expressions
    • Debugging
    • Basic and Intermediate Algorithm Scripting
    • Basic Data Structures
  • Certification Goal: To provide a comprehensive foundation in JavaScript logic and data manipulation techniques.

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