# The cat is a neural net

> A 7-step interactive lesson: a tiny JavaScript function that decides how hard a cat jumps becomes an exact Handwired neural net. Poke it, try to break it, then watch it learn new constants in its own code, next to a regular neural net.

Source: https://handwired.wiki/pages/js-vs-nn.html

<p class="lede">Seven small steps, about three minutes. Everything you see is computed live in your browser.</p>

*(Interactive demo: open https://handwired.wiki/pages/js-vs-nn.html)*