Gist e8e67bab8a73e27d741e5a1d793bb5bd
This example demonstrates how to multiply all numbers within a nested array structure, flattening the multiplication across sub-arrays. The code uses nested `for` loops to iterate through each inner array, updating a running `product` variable. A test case with `[[1,2],[3,4],[5,6,7]]` is provided at the end, showing the expected result of 5040. The visualization highlights the logic of nested iteration and cumulative multiplication, with the data source being the hardcoded test array. No external libraries or rendering APIs are used, as the focus is on the algorithmic pattern in plain JavaScript.