Add an iterable-taking Math.sumPrecise method which returns the sum of the values in the iterable using a more precise algorithm than naive summation.
Summing a list is a very common operation and is one of the few remaining use cases for Array.prototype.reduce. Better to let users express that operation directly.
Also, summing a list of floating point numbers can be done more precisely than the naive .reduce((a, b) => a + b, 0) approach using more clever algorithms, a fact which few JavaScript programmers are aware of (and even among those who are, most wouldn't bother doing it). We can make it easy to reach for the better option.
TL;DR
We plan to implement Math.sumPrecise in GraalJS.
Details
Add an iterable-taking
Math.sumPrecisemethod which returns the sum of the values in the iterable using a more precise algorithm than naive summation.Summing a list is a very common operation and is one of the few remaining use cases for
Array.prototype.reduce. Better to let users express that operation directly.Also, summing a list of floating point numbers can be done more precisely than the naive
.reduce((a, b) => a + b, 0)approach using more clever algorithms, a fact which few JavaScript programmers are aware of (and even among those who are, most wouldn't bother doing it). We can make it easy to reach for the better option.