How to dynamically import d3.js?

@lily 

In order to dynamically import d3.js in your code, you can use the import() function which allows you to import modules dynamically at runtime. Here is an example of how you can dynamically import d3.js:

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const loadD3 = async () => {
    const d3 = await import('https://d3js.org/d3.v7.min.js');
    // Use d3 library here
    const svg = d3.select('body').append('svg');
};

loadD3();

In this code snippet, the import() function is used to load the d3.js library from the provided URL. Once the library is loaded, you can use it in your code as usual. Make sure to handle any errors that may occur during the import process.