D3.js | d3.scaleIdentity() Function

The d3.scaleBand() function in D3.js is used to construct a new identity scale with the unit domain [0, 1] and the unit range [0, 1].

Syntax:

d3.scaleIdentity().domain(array of values).range(array of values);

Parameters: This function does not accept any parameters.



Return Value: This function returns the corresponding range for the domain’s value.

Below program illustrate the d3.scaleIdentity() function in D3.js:

Example:

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<!DOCTYPE html>
<html>
  
<head>
    <title></title>
    <script src="https://d3js.org/d3.v4.min.js">
  </script>
</head>
  
<body>
  
    <script>
        // Calling the scaleIdentity() function
        var A = d3.scaleIdentity()
            .domain([0, 1])
            .range([0, 1]);
  
        // Getting the corresponding range for
        // the domain value
        console.log(A('0'));
        console.log(A('1'));
    </script>
</body>
  
</html>

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Output:

0
1

Reference: https://devdocs.io/d3~5/d3-scale#scaleBand



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