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Array.reduce() is Goated the Swiss army knife Summing Numbers: Using reduce() to calculate the sum of numbers in an array. Flattening Arrays: Flattening a nested array into a single array. Grouping Objects: Grouping objects based on a specific property. Creating Lookup Maps: Generating a lookup map from an array of objects. Counting Occurrences: Counting the occurrences of elements in an array. Composing Functions: Composing a sequence of functions to transform data. Implementing Simple Redux-like State Management: Implementing a basic state management system similar to Redux. Generating Unique Values: Extracting unique values from an array. Calculating Average: Calculating the average of a set of numbers points are cheap codes are 🐐 who wants to know?