JavaScript Arrays

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JavaScript Arrays - using methods

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Last edited Feb 13, 2023

Created on Feb 10, 2023

This example demonstrates how to manipulate JavaScript arrays using built-in methods such as filter, map, sort, and reduce, alongside D3's ascending function. It defines a range generator, then applies array operations to create filtered, mapped, and sorted results, logging them to the browser's Dev Tools console. The code also sorts an array of objects by key using D3's ascending comparator and shows how to construct an object from array entries. The visualization relies on the d3 library (version 6.6.2) for its ascending helper, with no graphical output beyond console messages.

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