Data visualization and machine learning are two crucial aspects of modern data science. The former allows analysts and business leaders to make sense of complex datasets by presenting insights in a visually appealing way. Meanwhile, the latter enables predictive modeling and decision-making by leveraging algorithms that can learn from data. In recent years, JavaScript has emerged as a powerful tool for implementing data visualization and machine learning applications. With libraries like D3.js, TensorFlow.js, and many others, JavaScript provides an accessible and versatile platform for developers to create compelling and interactive data-driven applications.