D3.js | d3.utcMonday Function

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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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