d3.js d3.timeWeek用法及代码示例

D3.js中的d3.timeWeek函数用于返回日期和时间在给定开始日期和结束日期范围内的所有星期。

用法:

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

参数：该函数接受以下三个参数：

Start:此参数保存给定的开始日期。
end:此参数保存给定的结束日期。
step:它是可选参数，其中包含用于跳过星期的值。

返回值：此函数返回给定范围内的所有可能的星期。

以下程序说明了D3.js中的d3.timeWeek函数：

示例1:

<!DOCTYPE html> 
<html> 
   <head> 
      <title> 
          D3.js | d3.timeWeek 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, 02, 01); 
           
         // Calling the timeWeek function 
         // without step value 
         var a = d3.timeWeek.range(start, end); 
           
         // Getting the week values 
         console.log(a); 
      </script> 
   </body> 
</html>

输出：

["2015-01-31T18:30:00.000Z", "2015-02-07T18:30:00.000Z", 
 "2015-02-14T18:30:00.000Z", "2015-02-21T18:30:00.000Z"]

示例2:

<!DOCTYPE html> 
<html> 
   <head> 
      <title> 
          D3.js | d3.timeWeek 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, 02, 01); 
           
         // Calling the timeWeek function 
         // with step value 
         var a = d3.timeWeek.range(start, end, 2); 
           
         // Getting the week values 
         console.log(a); 
      </script> 
   </body> 
</html>

输出：

["2015-01-31T18:30:00.000Z", "2015-02-14T18:30:00.000Z"]

参考： https://devdocs.io/d3~5/d3-time#timeWeek

相关用法

注：本文由纯净天空筛选整理自Kanchan_Ray大神的英文原创作品 D3.js | d3.timeWeek Function。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。