How Can I Run a Function on Page Load Without Using the `` Tag?-JS Tutorial-php.cn

How Can I Run a Function on Page Load Without Using the `` Tag?

Barbara Streisand

Release： 2024-11-16 07:00:03

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How Can I Run a Function on Page Load Without Using the `` Tag?

Running a Function Upon Page Load Without the Tag

When attempting to execute a function upon page load without utilizing the tag, users may encounter some resistance. Despite employing various approaches, the function remains inactive. This article will delve deeper into the issue and provide a working solution that ensures the function is executed as expected.

The Usage of window.onload

One potential solution commonly suggested is to utilize the window.onload event handler. By assigning the function to this handler, it should be executed when the page is fully loaded. However, in some cases, this method may not function as expected.

The Working Script

To illustrate how window.onload can be effectively employed, consider the following code snippet:

<!DOCTYPE html>
<html>
    <head>
        <title>Test</title>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <script type="text/javascript">
        function codeAddress() {
            alert('ok');
        }
        window.onload = codeAddress;
        </script>
    </head>
    <body>

    </body>
</html>

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In this code, the codeAddress function is responsible for displaying an alert upon page load. When this code is executed, the function will be successfully invoked when the page is completely loaded.

Conclusion

While the tag is a straightforward method for executing functions on page load, it is not the only option available. This article demonstrated how window.onload can be utilized to achieve the same result, providing a viable alternative for situations where the tag is not suitable.

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