JavaScript: Get the month end date

JavaScript Datetime: Exercise-53 with Solution

Month End Date

Write a JavaScript function to get the month end date.

Sample Solution:

JavaScript Code:

// Define a function called endOfMonth that takes a Date object 'date' as input
function endOfMonth(date)
  {
    // Create a new Date object representing the last day of the month of the provided date
  return new Date(date.getFullYear(), date.getMonth() + 1, 0);
 
  }

// Create a new Date object representing the current date and time
dt = new Date(); 

// Output the last day of the month for the provided date
console.log(endOfMonth(dt).toString());

Output:

Sat Jun 30 2018 00:00:00 GMT+0530 (India Standard Time)

Explanation:

In the exercise above,

• The function "endOfMonth()" takes a 'date' parameter, which is a Date object.
• Inside the function, it creates a new Date object representing the last day of the month of the provided date.
• The 'new Date()' constructor is used with three arguments: the year (date.getFullYear()), the next month (date.getMonth() + 1), and day 0 of that month (which represents the last day of the previous month).
• Finally, the function returns the newly created Date object representing the last day of the month.

Flowchart:

Live Demo:

See the Pen JavaScript - Get the month end date-date-ex-53 by w3resource (@w3resource) on CodePen.

For more Practice: Solve these Related Problems:

• Write a JavaScript function that calculates the last day of the month for a given Date object using the Date constructor with day 0 of the next month.
• Write a JavaScript function that returns the month end date formatted as "MM/DD/YYYY", handling leap years correctly.
• Write a JavaScript function that validates the month and year inputs before computing the end date.
• Write a JavaScript function that compares the computed month end date with expected values for verification.

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