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NFJS2025

Refactoring Javascript

The rise of Ajax and Rich Web Applications, plus the success of dynamic languages, has caused people to revisit the JavaScript language. Now that we take JavaScript seriously as a language, it is time to get serious about the quality of JavaScript code, through refactoring. In this talk, we will approach refactoring JavaScript in three phases: 1) Test first, then refactor. 2) Refactoring 101. 3) Overcoming common problems.

  • Test first, then refactor. Bring JavaScript code under test, so that you can refactor with confidence.
  • Refactoring 101. Explore some important refactorings: composed method, extract method, introduce named parameter, and extract object.
  • Overcoming common problems. Work through three problems endemic to legacy JavaScript code: making JavaScript unobtrusive, refactoring to prototype-based inheritance, and refactoring to functional style.

Jason Rudolph

About Jason Rudolph

Jason Rudolph is a Principal at Relevance, a leading development and training organization specializing in Ruby, Rails, Groovy, and Grails, and integrating them into enterprise environments. Jason has more than nine years of experience in developing software solutions for domestic and international clients of all sizes, including start-ups, Dow 30 companies, and government organizations.

Jason is the author of the highly-praised book, Getting Started with Grails, and speaks frequently at software conferences and user groups. Jason also contributes regularly to the open source community, both as an early committer to Grails, and also as a committer to the Streamlined framework and numerous other Ruby and Rails projects.

Jason holds a degree in Computer Science from the University of Virginia. You can find Jason online at http://jasonrudolph.com.

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