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How to use the REDUCE function in Microsoft Excel

Macros are powerful, but they don't work on the web or mobile. I’ve switched to the native REDUCE function for my complex ...
The Next Web

The ins and outs of JavaScript reducer — a simple, yet powerful array method

JavaScript’s reduce is one of the most useful array methods that should be in a developer’s arsenal. Introduced in ES5, it’s somewhat similar to for…each and map methods that are used with arrays, but ...