How to Handle Script Tag Inclusion in JavaScript Strings Without Causing Syntax Errors?

Script Tag Dilemma in JavaScript Strings

In JavaScript programming, inserting a script tag directly inside a quoted string can cause unexpected behavior. When encountered within a string, the HTML parser interprets the closing script tag () as the end of the current script element.

Cause:

The HTML parser processes the page from top to bottom. When it encounters <script> in the string, it expects the opening tag to be followed by script code and a closing tag. The presence of </script> within the string indicates the end of the script element.

Issue:

As a result, any code following the closing script tag is treated as text content outside the script element, leading to unintended execution or syntax errors.

Solution: Concatenation Operator

To avoid this issue, concatenate the string with the script tag using the concatenation operator ( ):

<code class="javascript">var test = '...... ' + '<script>......';</code>

By concatenating the script tag as a separate string, the HTML parser correctly interprets it as part of the string.

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