Error "Uncaught ReferenceError: $ Is Not Defined"

June 15, 2022 Post a Comment

I began to study the 'javascript'. in html source code

Solution 2:

$ is an alias for the jQuery library. In this case, you don't need jQuery at all. You can just execute that IIFE (immediately-invoked function expression) and it should work fine.

"use strict";

(function() {
document.getElementById("test_button").onclick = test_click;
function test_click() {
    document.getElementById("test").innerHTML = "HI";
}
})();

<!Doctype html>
<html>
<head>
    <meta charset="utf-8">
</head>
<body>
    <button id="test_button">Test</button>
    <p id="test">Hello World</p>

    <!-- script -->
    <script src="test.js"></script>
</body>
</html>

javascript dox

Error "Uncaught ReferenceError: $ Is Not Defined"

Solution 1:

Solution 2:

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