Observer Pattern

in JavaScript

But First...Who Am I?

Technical Team Lead at Health Scholars

Worked in the IT industry for over 14 years

Including contracting at NASA as a systems administrator

Live-coding projects and fun visualizations on Twitch.tv

Objectives

• Implement the Observer Pattern in 2 ways
• Describe what Design Patterns are
• Describe what the Observer Pattern is
• Describe when you would want to use the Observer Pattern

Implement the Observer Pattern in 2 ways

Describe what Design Patterns are

Describe what Design Patterns are

Describe what the Observer Pattern is

Describe when you would want to use the Observer Pattern

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