Obtain the name of a node using its identification number in D3JS

I am currently working on implementing a generalized tooltip feature. This tooltip will display the name and other relevant data of the active node. For example, if node 3 is currently active, the tooltip will show the name and distance (not link distance) of node 3.

However, I am facing an issue in selecting the desired node. Every time I attempt to select it, I encounter the error message "SyntaxError: Document.querySelector: '#3' is not a valid selector".

Below is the code snippet:

var currNode = 3; // The ID of the active node
var position = d3.select("#" + currNode).name // The data to be displayed, such as the name

Subsequently, the variable "position" is utilized in the tooltip as follows:

var tooltip = this.svg.append("text")
      .attr("x", 25)
      .attr("y", 25)
      .text("Your current position: " + position )
      .style("font-weight", 550)
      .style("font-size", 18)

Has anyone discovered an alternative method for accessing the data of a specific node?

Thank you in advance!

Answer №1

If you need to locate a specific item by its id within an array of objects, you can use the following code snippet:

const selectedNode = nodes.find(node => node.id === id);
const nodeName = selectedNode.name;

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