Generate a JavaScript Array of Time Strings Based on a Time Interval

Discover how to efficiently create an array of time strings in `JavaScript`, based on a specified time interval between two dates. Learn the method to achieve this easily!
---

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Get array of strings based on a time interval

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Generate a JavaScript Array of Time Strings Based on a Time Interval

Creating an array of time strings within a specified time interval can seem daunting, especially when working with date-time formats in JavaScript. Imagine you need to generate a list of time slots—like every 15 minutes—between two given datetimes. Let's explore how to tackle this problem effectively!

The Problem at Hand

Suppose you have two datetimes:

Start Time: "2021-04-10T10:05:00+ 02:00"

End Time: "2021-04-10T11:35:00+ 02:00"

From these two timestamps, you want to create an array that lists time strings at 15-minute intervals, such as:

"10:00", "10:15", "10:30", "10:45", "11:00", "11:15", "11:30"

In this post, we’ll show you how to implement a function that does just that using JavaScript.

Solution Breakdown

We'll create a function called getTimeArray, which accepts three parameters:

Interval (int): The time interval in minutes that you want in your array.

Start Date (d1): The starting date-time from which the array should begin.

End Date (d2): The ending date-time until which the array should continue.

Step-by-Step Implementation

Here’s how to implement the solution step by step:

Initialize Dates: Convert the datetime strings into Date objects.

Determine the Starting Minute: Adjust the minutes of the start date to the nearest quarter hour (0, 15, 30, 45).

Loop Until the End Date: Create an array and fill it with formatted time strings, incremented by the interval during each loop iteration.

JavaScript Code Example

Below is the complete implementation of the function:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code

Date(): The Date constructor allows us to manipulate date and time easily.

Minute Adjustment: We determine the nearest quarter hour for the starting time to ensure our array starts at the right point.

Formatted Output: We use string manipulation to ensure the appearance of our time strings is consistent and user-friendly.

Loop Control: We continue to add to the array until we reach the predefined end datetime.

Conclusion

Creating an array of time strings at specific intervals can be achieved efficiently with just a few lines of code in JavaScript. By employing the above method, you can modify your time intervals, dates, and formats as needed for your application. Now it’s your turn—try out the getTimeArray function and see how it works with different intervals or time ranges!

Happy coding!