Thank you for the comment. Such comments encourage me to make more videos.

Vega visualizations (including interactive and animated ones) can be created using Vega JSON only. No JavaScript required. Basic JS may be required to embed Vega visualizations into a web page with some additional functionality, for example, Vega examples on my website are being generated using Vega JSON code stored in my Github repository. That required a few rows of JS code.

@@power-of-bi Great. Thank You. Hoping to learn a lot from you.

For some reason most people prefer Vega-Lite (less code?). From my point of view (but maybe it's skewed by the fact that I already know Vega) Vega is more descriptive and straightforward. I mean, look at the Vega mark. It's clearly describes what you see on the screen ("rect"), what data table it is based on ("table"), where it starts and where it ends (x, y, y2 and width properties), how values are being projected onto the plot (using xscale and yscale) and what color it is filled with ("steelblue"). Vega: "marks": [ { "type": "rect", "from": {"data":"table"}, "encode": { "enter": { "x": {"scale": "xscale", "field": "category"}, "width": {"scale": "xscale", "band": 1}, "y": {"scale": "yscale", "field": "amount"}, "y2": {"scale": "yscale", "value": 0}, "fill": {"value": "steelblue"} } } ] And Vega-Lite? "mark": "bar", "encoding": { "x": {"field": "a", "type": "nominal", "axis": {"labelAngle": 0}}, "y": {"field": "b", "type": "quantitative"} } What? Everything is based on default setting applied behind the scene.

@@power-of-bi Very good example to appreciate the difference. Thank you.

Thanks. I'll do that soon. I'll start from a simple example (basic column chart). Then, in the following videos will go through other more and more advanced examples.

kzfaq.info/get/bejne/ftx5q9R2qJjDhI0.html