When comparing D3js.org vs D3 Gallery, the Slant community recommends D3 Gallery for most people. In the question“What are the best resources to learn D3.js?” D3 Gallery is ranked 5th while D3js.org is ranked 9th. The most important reason people chose D3 Gallery is:
The gallery is [updated frequently](https://github.com/mbostock/d3/wiki/Gallery/_history) with improvements and new examples.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Strong documentation
D3js.org provides a long list of examples demonstrating the library in use, and the code for those examples. D3js.org is also where the documentation for the library can be found (such as a list of all the methods available).
Pro Updated often
The gallery is updated frequently with improvements and new examples.
Pro A lot of visual appealing examples including source code
There are hundreds of examples to look at, including the source code. This will give you a great idea of what D3.js is capable of.
Cons
Con Not beginner friendly
Though D3js.org provides some tutorials, the documentation is better suited for developers who have already been introduced to the library and need to reference the official documentation. Someone new to D3.js will most likely find themselves unsure where to start.
Con Examples only
The D3 gallery isn't a tutorial, it only shows examples of graphs created with D3.
For someone completely new to D3, this would likely be an overwhelming place to start.