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D3.js | d3.map.values() Function
  • Last Updated : 28 Jun, 2019

The map.values() function in D3.js used to return an array of values for every entry in the created map. The order of the returned values are arbitrary.

Syntax:

d3.map.values()

Parameters: This function does not accept any parameters.

Return Value: This function returns an array of values for every entry in the created map. Order of those returned values are arbitrary.

Below programs illustrate the d3.map.values() function in D3.js:



Example 1:

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<!DOCTYPE html>
<html>
     
<head>
    <title> d3.map.values() Function</title>
     
    <script src='https://d3js.org/d3.v4.min.js'></script>
</head>
  
<body>   
  <script>
       
     // Creating a map
     var map = d3.map({"Ram": 5, "Geeks": 10, "gfg": 15});
       
     // Calling the map.values() function
     A = map.values();
       
     // Getting an array of values for
     // every entry in the map.
     console.log(A);
  </script>
</body>
  
</html>

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Output:

[5, 10, 15]

Example 2:

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<!DOCTYPE html>
<html>
     
<head>
    <title> d3.map.values() Function</title>
     
    <script src='https://d3js.org/d3.v4.min.js'></script>
</head>
  
<body>
  <script>
       
     // Creating some maps
     var map1 = d3.map({"Ram": 5});
     var map2 = d3.map({"Geeks": 10});
     var map3 = d3.map({"Ram": 5, "Geeks": 10});
     var map4 = d3.map();
       
     // Calling the map.values() function
     A = map1.values();
     B = map2.values();
     C = map3.values();
     D = map4.values();
       
     // Getting an array of values for
     // every entry in the map.
     console.log(A);
     console.log(B);
     console.log(C);
     console.log(D);
  </script>
</body>
  
</html>

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Output:

[5]
[10]
[5, 10]
[]

Ref: https://devdocs.io/d3~5/d3-collection#map_values

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