How much can a Front-end Developer learn about Machine Learning using only JavaScript?

A front-end developer learned about machine learning using JavaScript, dispelling the myth that it's only for geniuses or those with a strong math background. They found JavaScript implementations of Python libraries and machine learning frameworks, enabling them to pre-process documents and create/train models in the browser. While machine learning requires higher-level math, it's not necessary to be a mathematician to try it. The developer's experience shows that front-end developers can learn machine learning with the right resources and practice.