Programming-Idioms

Edit summary for version 8 by TravelingTechGuy:
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2019-09-29, 11:08:19

2019-09-29, 11:27:34

Idiom #202 Sum of squares

Calculate the sum of squares s of data, an array of floating point values.

Calculate the sum of squares s of data, an array of floating point values.

s = data.reduce((a, c) => a + c ** 2, 0)

s = data.reduce((a, c) => a + c ** 2, 0)

Array.reduce uses a function to reduce the array intoto a single sum of all the elements' squares.

The initial accumulator's value is 0.

Array.reduce uses a function to reduce the array intoto a single sum of all the elements' squares.

The initial accumulator's value is 0.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce

https://jsfiddle.net/k2j5cyah/

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