Uncaught TypeError: $.ajax is not a function

Created at 06-Aug-2021 , By samar

Uncaught TypeError: $.ajax is not a function

Hello everyone, in this post we will look at how to solve "Uncaught TypeError: $.ajax is not a function" in programming.

Sometimes you get the error Uncaught TypeError: $.ajax is not a function in your browser console while calling $.ajax() method because of slim (version) of jQuery. You have to use jquery.min.js instead of slim.min.js. JQuery with slim version does not contains the $.ajax() method in jQuery.
  • Use jquery.min.js instead of jquery.slim.min.js

    <!-- Use -->
    <script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
    <!-- Instead of -->
    <!-- <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> -->

    Jquery slim (version) does not contain the following method, jQuery.fn.extend ,jquery.fn.load, jquery.each, jQuery.expr.filters.animated
    ajax settings like jQuery.ajaxSettings.xhr, jQuery.ajaxPrefilter, jQuery.ajaxSetup, jQuery.ajaxPrefilter, jQuery.ajaxTransport, jQuery.ajaxSetup, xml parsing like jQuery.parseXML, animation effects like jQuery.easing, jQuery.Animation, jQuery.speedz. 

    You have to use jquery.min.js instead of jquery.slim.min.js in your html.

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