JavaScript – get the first day of the week from current date

by

Using the getDay method of Date objects, you can know the number of day of the week (being 0=Sunday, 1=Monday, etc).

You can then subtract that number of days plus one, for example:

function getMonday(d) {
  d = new Date(d);
  var day = d.getDay(),
      diff = d.getDate() - day + (day == 0 ? -6:1); // adjust when day is sunday
  return new Date(d.setDate(diff));
}

getMonday(new Date()); // Mon Nov 08 2010

More Related Contents:

  1. Is there a better way to convert negative numbers to positive in JavaScript? [duplicate]
  2. Cartesian product of multiple arrays in JavaScript
  3. Fastest way to flatten / un-flatten nested JSON objects
  4. Javascript Array.sort implementation?
  5. Fast stable sorting algorithm implementation in javascript
  6. How does this recursion work?
  7. Is it possible to get all arguments of a function as single object inside that function?
  8. How do I sort an array of objects based on the ordering of another array?
  9. Javascript – Generating all combinations of elements in a single array (in pairs)
  10. Does javascript process using an elastic racetrack algorithm
  11. Where is my implementation of rot13 in JavaScript going wrong?
  12. What’s the algorithm to calculate aspect ratio?
  13. Javascript algorithm to find elements in array that are not in another array
  14. How to wrap part of a text in a node with JavaScript
  15. Sorting Array with JavaScript reduce function
  16. Calculating the shortest route between two points
  17. Find difference between two strings in JavaScript
  18. Tersest way to create an array of integers from 1..20 in JavaScript
  19. Remove duplicate objects from an array using javascript
  20. Big O of JavaScript arrays
  21. Get the item that appears the most times in an array
  22. Optimized merge sort faster than quicksort
  23. Compare Strings Javascript Return %of Likely
  24. Combine json arrays by key, javascript
  25. JavaScript Math.random Normal distribution (Gaussian bell curve)?
  26. Number.sign() in javascript
  27. Diamond-square algorithm not working (rewrite code from JS to JAVA)
  28. Visualization of calendar events. Algorithm to layout events with maximum width
  29. Using an imported module inside Google App Script
  30. Algorithm of JavaScript “sort()” Function

Leave a Comment