Functional JavaScript Programming 11 - Reduce( ) Method (WITH EXAMPLE)
Best book for Functional Programming in JS - https://www.amazon.com/Functional-Pro...
What is Reduce( ) Method in JavaScript?
How to get started in Functional Programming on JavaScript?
In this video tutorial, I talk about the basics of Functional Programming by bringing in the Reduce( ) Method. What is it? Find out in the video.
REDUCE( ) FUNCTION
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1. An Array method used to reduce the elements of an array to one single value
2. Pure function
3. The return value is stored in an accumulator as the result
4. The execution is done for each value, from left to right
5. Syntax = arr.reduce(callback, [initialValue])
6. Parameters involved: callback, accumulator, currentValue, currentIndex, array, initialValue
7. Return Value
8. initialValue is optional
9. But it is safer to provide an initial value, because random outputs can be avoided if the array is empty
Code File - https://jsfiddle.net/rockyderaze/jLmv...
JSFiddle - https://jsfiddle.net/
Reduce( ) Method in Functional JavaScript Programming by Rocky DeRaze (WITH EXAMPLE)