21 posts tagged with "javascript"

There are several ways to compute the sum of numbers in an array with JavaScript. Different approaches have different pros and cons, and there are also approaches that are better and worse from a performance and clean-code perspective. Writing clean code isn't only aesthetically more pleasing — readable code is also easier to maintain and easier for others to understand and build on. Common to all ways of summing numbers in an array is that you have to loop through the array somehow.

TL;DR​

• There are many ways to sum numbers in an array, but several of them are hard to read and unnecessarily complicated.
• The best way is using the built-in reduce function.