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D3.js band.range() Function
  • Last Updated : 23 Sep, 2020

The band.range() function in D3.js library is used to set the range of the scale to the specified two-element array of numbers. The default value of the range is [0, 1].

Syntax:

  band.range([range]);

Parameters: This function accepts single parameters as given above and described below.

  • range: This parameter accepts a two-element array of numbers.

Note: If the element in the range are not numbers then they are coerced to number.

Return Value: This function does not return anything.



Below given are a few examples of the function given above.

Example 1:

HTML




<!DOCTYPE html>
<html lang="en">
  
<head>
    <meta charset="UTF-8" />
    <meta name="viewport" path1tent=
        "width=device-width, initial-scale = 1.0" />
  
    <script src="https://d3js.org/d3.v4.min.js">
    </script>
</head>
  
<body>
    <script>
        // Create the band scale with specified
        // domain and range.
        var band = d3.scaleBand()
            .domain([0, 1])
            .range([0, 1]);
  
        console.log("When range is [0, 1]");
        console.log("band(0): ", band(0));
        console.log("band(1): ", band(1));
  
        var band = d3.scaleBand()
            .domain([0, 1])
            .range([10, 20]);
  
        console.log("When range is [10, 20]");
        console.log("band(0): ", band(0));
        console.log("band(1): ", band(1));
    </script>
</body>
  
</html>

Output:

Example 2:

HTML




<!DOCTYPE html>
<html lang="en">
  
<head>
    <meta charset="UTF-8" />
    <meta name="viewport" path1tent=
        "width=device-width, initial-scale = 1.0" />
  
    <script src="https://d3js.org/d3.v4.min.js">
    </script>
</head>
  
<body>
    <script>
        // Create the band scale with specified 
        // domain and range.
        var band = d3.scaleBand()
            .domain([0, 1])
            // These chars are coerced to numbers
            .range(["1", "2"]);
  
        console.log("When range is [\"1\", \"2\"]");
        console.log("band(0): ", band(0));
        console.log("band(1): ", band(1));
  
        var band = d3.scaleBand()
            .domain([0, 1])
            // These chars are coerced to numbers
            .range(["100", "200"]);
  
        console.log("When range is [\"100\", \"200\"]");
        console.log("band(0): ", band(0));
        console.log("band(1): ", band(1));
    </script>
</body>
  
</html>

Output:

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