Jquery problems with some chars in strings

I'm having troubles with some string chars like 'c++', when trying manipulating that i receive an error: uncaught exception: Syntax error, unrecognized expression: +

Is there some way of declaring strings or somenthing more that can be usefull to this case?

In this case i pass var k = 'c++' to a function which prints that var in this way:

$('#wrapper').html('<span>'开发者_C百科+k+'</span>');

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Are you eval'ing the above code? As it stands what you have there works fine if it's just included in a page with var k = "c++".

If you are going to eval the string, then you should surround 'k' with quotes and also escape any quotes that might be in it.

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That code looks fine. Runs with no problem here

That is not the line of code causing the error