This example demonstrates common JavaScript array methods for data manipulation and transformation. The code defines a `range` function that creates a numeric array, then uses commented-out examples of `forEach`, `filter`, `sort`, and `map` to show how these operations work. The active portion creates an array of key-value objects and uses `Array.prototype.reduce` to convert it into a single object. The example relies entirely on native JavaScript APIs and is meant to be explored through browser DevTools console output, with no external libraries or visual rendering involved.