Advanced JavaScript techniques
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This document discusses advanced JavaScript techniques including functions as first-class citizens, object-oriented programming with classes, closures, variable hoisting and scopes, JSON, and debugging techniques. It also provides resources for further learning including a book on JavaScript patterns and links to the presenter's website and social media profiles.
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Advanced JavaScript techniques
- 1. ADVANCED (MAYBE?) JAVASCRIPT TECHNIQUES Rajasekharan Vengalil bit.ly/avranju | @avranju Developer Evangelist Microsoft Corporation
- 2. My DEMO! super- duper eval console
- 3. FUNCTIONS Functions are first class citizens •Callbacks •call, apply •Context
- 4. OO IN JAVASCRIPT - CLASSES Designing classes •Member data & methods •Access control •A note on “new”
- 5. CLOSURES Closures •What are they? •Some use cases •Private members •Backing data for accessors
- 6. VARIABLE HOISTING & SCOPES Static typers beware! •Only functions form variable scope •Variables get “hoisted” •Declare everything at the top •Use immediate functions to limit scope of locals in global code
- 7. JAVASCRIPT OBJECT NOTATION (JSON) JSON •What is JSON? •Browser support for JSON •JSON-P
- 8. DEBUGGING Some pointers •IE developer tools •“debugger” keyword •“console.log” is your friend
- 9. Resources Some Links Read “JavaScript Patterns” by Stoyan Stefanov Eval Console Shameless Plug bit.ly/avranju rajave@microsoft.com @avranju