Auto Calculate Age Based On Birthday In jQuery - Ager.js

Ager.js is a small yet useful Age Calculator written in jQuery that automatically calculates someone's age based on the Date of Birth you provide.

You can customize the date format and prefix/suffix of the output.

How to use it:

1. To get started, include the JavaScript file ager.js after loading jQuery library (slim build).

<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" 
        integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" 
        crossorigin="anonymous">
</script>
<script src="ager.js"></script>

2. Wrap the Date of Birth into a container element.

<span class="ager">1990-08-06</span>

3. Call the function on the element and customize the output with the following parameters.

$('.ager').ager({
  years_text: "Years Old",
  output: "%a %Y | %M. %D<sup>%s</sup> %y",
  day_first_suffixes: ["st", "nd", "rd"],
  day_global_suffixes: "th",
  text_months: ["Jan", "Feb", "Mar", "Apr", "May", "jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
  output_type: "html" // or text
});

<!-- Output -->
28 Years Old | 08/06/1990

4. Date and Time Format Strings.

• %d: 01-31
• %D: 1-31
• %m: 01-12
• %M: 1-12
• %N: Month name
• %y: Birthday year
• %Y: e.g. 28 years old
• %a: Calculated age
• %s: Day's suffix

5. You can also specify the date of birth in the JavaScript:

$('.ager').ager({
   birth: "1990-08-06"
});

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This awesome jQuery plugin is developed by jhechavarria. For more Advanced Usages, please check the demo page or visit the official website.