How to catch svg image fail to load in d3.js?

@denis 

In D3.js, you can catch SVG image fail to load by using the "error" event listener on the image element. Here is an example of how you can do this:

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// Append an image element to the SVG
svg.append("image")
   .attr("xlink:href", "path/to/image.png")
   .attr("width", 100)
   .attr("height", 100)
   .on("error", function(){
       console.log("Image failed to load");
   });

In this code snippet, we are appending an image element to the SVG and setting the "xlink:href" attribute to the path of the image we want to load. We then add an event listener for the "error" event, which will be triggered if the image fails to load. In the event handler, we simply log a message indicating that the image failed to load.

By using this technique, you can easily catch SVG image fail to load events in D3.js and handle them accordingly.