Code golf
This example presents a JavaScript "code golf" function that converts a human age into equivalent cat and dog ages. The visualization itself is the code, intended for a gallery showcasing terse programming. The code uses a nested ternary operator and an arrow function to calculate the conversions, with `alert()` providing the output. It validates the input using `parseFloat` and a comparison check, returning "Invalid" for non-positive or non-numeric values. The data source is the gist file `gistfile1.txt` by MikeyParton.