JavaScript arrays

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JavaScript arrays

✓ Published1🌍 Public

Last edited Feb 28, 2023

Created on Feb 28, 2023

This example demonstrates common JavaScript array manipulation techniques, including `map`, `filter`, `reduce`, and custom sorting, using both native methods and D3’s `ascending` and `descending` helpers from d3-array. The code creates a range of numbers, filters for even values, transforms objects, and sorts an array of numeric and key–value entries. It shows how `reduce` can aggregate values or build an object from array entries. The visualization is a bare HTML page with no rendered graphics, focusing instead on console output for learning array operations.

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A bare minimum HTML page demonstrating use of CSS and JavaScript.

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