JavaScript Arrays

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JavaScript Arrays

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Last edited Aug 12, 2022

Created on Aug 12, 2022

This example demonstrates how JavaScript’s built-in array methods can transform and organize data, specifically by sorting an array of objects by their `key` property. It shows the result of calling `entries.sort((a,b) => a.key < b.key ? -1:1)`, which arranges the entries alphabetically by key. The code also includes commented-out examples of `filter`, `map`, `reduce`, and numeric sorting with comparator functions, illustrating pitfalls like lexicographic sorting of numbers. The implementation relies solely on native JavaScript array APIs, with no external libraries or rendering, outputting results to the console.

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