Function currying
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This document discusses function currying as a way to refactor code to make it more concise and easier to maintain. It explains that function currying combines a function with variables to create a new function, with the variables captured by closure scope. An example is given of refactoring asynchronous REST service code using two levels of function currying to make the code more DRY and less verbose.
![Function Currying:
Combine function with variables to create new function.
Variables are cached [captured] as function arguments
Outer variables are accessed via closure scope by inner Function
Sunday, April 29, 12](https://image.slidesharecdn.com/functioncurrying-120429135027-phpapp02/85/Function-currying-3-320.jpg)
Function currying
- 1. Understanding Function Currying Javascript / AS3 Thomas Burleson Digital Solutions Architect Sunday, April 29, 12
- 2. Anonymous Functions Closures Function Currying Partial Applications Sunday, April 29, 12
- 3. Function Currying: Combine function with variables to create new function. Variables are cached [captured] as function arguments Outer variables are accessed via closure scope by inner Function Sunday, April 29, 12
- 4. But how/why do we use Function Currying Explore existing Javascript code Refactor code (to remove verbosity) Apply DRY concept Concise Code, Easy Maintenance Sunday, April 29, 12
- 5. Refactoring with DRY Existing Code Anonymous Functions Closures Function Currying Sunday, April 29, 12
- 6. REST Service (asynchronous) Sunday, April 29, 12
- 7. Not DRY Verbose! Difficult to maintain Sunday, April 29, 12
- 8. Uses 'function currying' at two (2) levels : onSuccess() forClass() Sunday, April 29, 12
- 9. Video Tutorial (click to run) (click to download) Source Code Sunday, April 29, 12