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Asked: 2026-05-12T14:06:31+00:00

I know that you can create ‘server-side comments’ (they won’t be sent as comments/text

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I know that you can create ‘server-side comments’ (they won’t be sent as comments/text to the client) in ASP.NET (MVC) via the <%-- Comment --%> tags.

However, I can’t seem to do this inside of a <script> tag — if I try this I get a bunch of code underlined in red, and weird unrelated errors (“Invalid expression term ‘}’) etc. from Visual Studio.

Is there another way to have server-side comments inside of the script tag? I want to comment my inline Javascript, but don’t want my comments sent to the client.

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1 Answer

  1. Editorial Team

    You can add the comment no problem.

    Visual Studio is stupid and doesn’t recognize the ASP <%– Comment %> tags in JS. Your page will still compile fine.

    As mentioned in another answer, using //<%– Comment %> will hide your comments (but leave the //).

    Also, be careful of ASP.NET’s habit of ignoring whitespace or line breaks around ASP-wrapped code: 

    //<%-- Comment %>
var whatever = '';

    May become:

    //var whatever = '';

    at run time.

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