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D3.js | d3.utcMonday Function

Last Updated : 23 Jul, 2019
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The d3.utcMonday function in D3.js is used to return all the dates based on Monday in the given range of start and end date in Coordinated Universal Time (UTC).

Syntax:

d3.utcMonday.range( start, end, step );

Parameters: This function accept three parameters as mentioned above and described below:

  • Start: This parameter holds the given start date.
  • end: This parameter holds the given end date.
  • step: It is the optional parameter which holds the value used to skip dates.

Return Value: This function returns all the dates based on Monday.

Below programs illustrate the d3.utcMonday function in D3.js:

Example 1:




<!DOCTYPE html>
<html>
  
<head>
    <title>
        D3.js | d3.utcMonday Function
    </title>
      
    <script src = 
        "https://d3js.org/d3.v4.min.js">
    </script>
</head>
  
<body>
    <script>
          
        // Initialising start and end date
        var start = new Date(2015, 07, 01);
        var end = new Date(2015, 07, 30);
          
        // Calling the utcMonday function
        // without step value
        var a = d3.utcMonday.range(start, end);
          
        // Getting the Monday dates
        console.log(a);
    </script>
</body>
  
</html>                    


Output:

["2015-08-03T00:00:00.000Z", "2015-08-10T00:00:00.000Z", 
"2015-08-17T00:00:00.000Z", "2015-08-24T00:00:00.000Z"]

Example 2:




<!DOCTYPE html>
<html>
      
<head>
    <title>
        D3.js | d3.utcMonday Function
    </title>
    <script src = 
        "https://d3js.org/d3.v4.min.js">
    </script>
</head>
  
<body>
    <script>
          
        // Initialising start and end date
        var start = new Date(2015, 07, 01);
        var end = new Date(2015, 07, 30);
          
        // Calling the utcMonday function
        // with step value
        var a = d3.utcMonday.range(start, end, 2);
          
        // Getting the Monday dates
        console.log(a);
    </script>
</body>
  
</html>                    


Output:

["2015-08-03T00:00:00.000Z", "2015-08-17T00:00:00.000Z"]

Reference: https://devdocs.io/d3~5/d3-time#timeMonday



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