How to write a simple custom js plugin

Question

I want to write a custom js plugin which needs to get initiated if there is a data attribute included in my HTML:

<input value="98" data-my-plugin="number">

If data-my-plugin is included, I want to initiate my js or jquery plugin automatically.

Did you try to write some code?

Dekel
– Dekel

2016-08-13 04:20:29 +00:00
Commented Aug 13, 2016 at 4:20 — Dekel
– Dekel, Commented Aug 13, 2016 at 4:20

guest271314 · Accepted Answer · 2016-08-13 05:00:01Z

2

You can use .ready(), attribute selector "[data-my-plugin]" or "[data-my-plugin=number]"

(function($) {
  $.fn.extend({
    "myPlugin": function() {
      // do stuff
      return this.val()
    }
  });
}(jQuery));

$(document).ready(function() {
  console.log($("[data-my-plugin]").myPlugin());
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js">
</script>
<input value="98" data-my-plugin="number">

edited Aug 13, 2016 at 5:00

answered Aug 13, 2016 at 4:23

guest271314

1

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