Using D3.js to create a multi-line chart with interactive mouseover tooltips

I attempted to create a multi-series line chart and implemented tooltips based on this particular stackoverflow response. However, despite my efforts, the tooltip feature does not seem to be functioning properly and I am struggling to identify the issue within my code.

var margin = {
    top: 20,
    right: 30,
    bottom: 30,
    left: 40
  },
  width = 960 - margin.left - margin.right,
  height = 500 - margin.top - margin.bottom;

var z = d3.scale.category20c();

var svg = d3.select("body").append("svg")
  .attr("width", width + margin.left + margin.right)
  .attr("height", height + margin.top + margin.bottom)
  .append("g")
  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

var parseDate = d3.time.format("%Y-%m-%dT%H:%M:%SZ");

var data = [{
  label: "a",
  data: [
    // Data entries here
  ]
}, {
  label: "b",
  data: [
    // Data entries here
  ]
}];

// More code snippets...

text.inner-circle {
  // CSS styles for inner circle text
}
text.inner-text {
  // CSS styles for main text
}
path {
  // Path styling
}
.axis path,
.axis line {
  // Axis styling
}
.grid .tick {
  // Grid tick styling
}
.grid path {
  // Grid path styling
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>

JSFIDDLE LINK

If anyone could assist me in identifying the error in my code and providing guidance on how to rectify it, I would greatly appreciate the support!

Answer №1

The issue arises from this specific line of code:

    var idx = bisect(d.values, xDate);

To resolve the bug, the line should be changed to:

    var idx = bisect(d.data, xDate);

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