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freeCodeCamp JavaScript Algorithms and Data Structures

EntryCodingFreeCompletion

Free, browser-based JavaScript certification covering ES6+ syntax, regular expressions, debugging, data structures, OOP, functional programming, and algorithm scripting. 300 hours of curriculum. Certificate issued upon project completion. Widely included in developer portfolios globally. This entry tracks the legacy V7 certification, which freeCodeCamp still issues while it rolls out a redesigned project-based JavaScript curriculum.

What you'll prove

  • Write ES6+ JavaScript using arrow functions, destructuring, and modules
  • Apply functional programming concepts including map, filter, and reduce
  • Implement OOP in JavaScript using classes and prototypes
  • Write algorithms for common problems including sorting and searching
  • Work with data structures including arrays, objects, linked lists, and trees
  • Debug JavaScript code using browser developer tools

Frequently asked

Is freeCodeCamp certification recognized by employers?

freeCodeCamp certificates are widely recognized in the developer community and carry meaningful weight alongside a portfolio of projects. They are not equivalent to vendor certifications but demonstrate structured learning and project completion.