I want the tooltip to have the appearance like here: http://bl.ocks.org/Caged/6476579. I can customize the font size, font color, background color, etc. But that example is for bar chart, I'm using forced layout. And it's only for d3.js V3, but I'm using V4.
I want to add the tooltip to both the node and the link, the text is from the json file. Can anyone help me? Thanks.
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