This example demonstrates common JavaScript array methods—filter, map, find, forEach, some, every, reduce, includes, flatMap, and reduceRight—using a small dataset of phone objects with names and prices. The code logs outputs for each method, such as filtering items under a price threshold, mapping product names, or summing prices via reduce. It also illustrates flattening nested matrices with flat and flatMap, and compares reduce versus reduceRight on string concatenation. The implementation uses plain ES6 syntax without external libraries, focusing on built-in Array prototypes for data manipulation.