JavaScript Arrays

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JavaScript Arrays

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Last edited Jan 9, 2023

Created on Jan 6, 2023

This example demonstrates common JavaScript array operations using plain code and D3’s `ascending` comparator. It shows how functions like `range`, `forEach`, `filter`, `map`, `reduce`, and `sort` transform arrays, including sorting numeric values correctly and grouping entries by key. No visual output is rendered; the code logs intermediate results to the console. The example uses the `d3` library’s `ascending` function for stable sorts, building a practical reference for array manipulation basics.

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

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