Is it necessary to include internal and containing tags for an external .js file to function properly?
Is it necessary to include internal and containing tags for an external .js file to function properly?
It is not necessary to include HTML tags in your JavaScript files. In fact, including them can lead to syntax errors.
Ensure that your .js files contain only JavaScript code without any surrounding HTML tags as you would typically find on a webpage.
Incorrect, it does not require that. The external file simply requires the code.
All you have to do is add
<script src="file.js" type="text/javascript"></script>Avoid using the script tag in external Javascript files.
Avoid unnecessary <script> tags to prevent errors.
Take for example the external.js file which includes an alert function with unnecessary <script> tags:
<script>
alert('external')
</script>
When this external.js file is added to index.html:
<script type="text/javascript" src="external.js"></script>
An error occurs, as demonstrated using Google Chrome:
Uncaught SyntaxError: Unexpected token '<'
This issue can be avoided by only utilizing the alert function without unnecessary <script> tags:
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