Comments

Comments will not be executed.
Comments can be added to explain, or to make the code more readable.

HTML comments

HTML  comments start with /* and end with */.

ASP.net Comments

in aspx.cs page comments start with //

in ASPX page  comments start with <%--      and end with    --%>

in Class file comments start with //

CSS Comments

in CSS comments start with /* and end with */

C++ Comments

Single line comment start with //
Multi line comment  start with /* and end with */

JavaScript Comments

Single line comment start with //
Multi line comment  start with /* and end with */

Jquery

Jquery comment start with //