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D3.js | d3.timeMonth Function
  • Last Updated : 25 Jul, 2019

The d3.timeMonth function in D3.js is used to return all the months with date in the given range of start and end date.

Syntax:

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

Parameters: This function accept three parameters which are given below:

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

Return Value: This function returns all the possible months in the given range.

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



Example 1:




<!DOCTYPE html>
<html>
   <head>
      <title>
          D3.js | d3.timeMonth 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, 01, 01);
         var end = new Date(2015, 05, 01);
           
         // Calling the timeMonth function
         // without step value
         var a = d3.timeMonth.range(start, end);
           
         // Getting the months values
         console.log(a);
      </script>
   </body>
</html>

Output:

["2015-01-31T18:30:00.000Z", "2015-02-28T18:30:00.000Z", 
"2015-03-31T18:30:00.000Z", "2015-04-30T18:30:00.000Z"]

Example 2:




<!DOCTYPE html>
<html>
   <head>
      <script src = 
          "https://d3js.org/d3.v4.min.js">
      </script>
  
      <title>
          D3.js | d3.timeMonth Function
      </title>
   </head>
   
   <body>
         
      <script>
         
         // Initialising start and end date
         var start = new Date(2015, 01, 01);
         var end = new Date(2015, 05, 01);
           
         // Calling the timeMonth function
         // with step value
         var a = d3.timeMonth.range(start, end, 2);
           
         // Getting the months values
         console.log(a);
      </script>
   </body>
</html>

Output:

["2015-01-31T18:30:00.000Z", "2015-03-31T18:30:00.000Z"]

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

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