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JavaScript: Get the week start date

JavaScript Datetime: Exercise-50 with Solution

Write a JavaScript function to get the week start date.

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Write a JavaScript function to get the week start date</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function startOfWeek(date)
  {
    var diff = date.getDate() - date.getDay() + (date.getDay() === 0 ? -6 : 1);
  
    return new Date(date.setDate(diff));
 
  }

dt = new Date(); 

console.log(startOfWeek(dt).toString());

Sample Output:

Mon Jun 18 2018 18:22:59 GMT+0530 (India Standard Time)

Flowchart:

Flowchart: JavaScript- Get  the week start date

Live Demo:

See the Pen JavaScript - Get the week start date-date-ex-50 by w3resource (@w3resource) on CodePen.


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Previous: Write a JavaScript function to get time differences in years between two dates.
Next: Write a JavaScript function to get the week end date.

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JavaScript: Tips of the Day

Converts the given array elements into <li> tags and appends them to the list of the given id.

Example:

const tips_arrayToHtmlList = (arr, listID) =>(el => ((el = document.querySelector('#' + listID)),(el += arr.map(item => '<li>${item}</li>').join(''))))();
console.log(tips_arrayToHtmlList(['item 1', 'item 2'], 'myListID'));

Output:

"null
  • ${item}
  • ${item}
  • "