Ever need to print quotation marks in a JavaScript string. That is not too bad, right? All you have to do is use the other set of quotation marks. If you need to use double quotation marks in a string, then you define the string by using single quotations, that is not hard. Now, what if you needed to use both sets of quotation marks in a string? That is a little bit harder. In this case you could split the string into many different parts and then just append the pieces together, but that can get to be too much work, not to mention confusing. It would be easier to take a look at the table bellow and use JavaScript's escape characters.

Character	Meaning
\b	Backspace
\f	Form feed
\n	New line
\r	Carriage return
\t	Tab
\'	Single quote or apostrophe (')
\"	Double quote (")
\\	Backslash (\)
\XXX	XXX is an octal number (between 0 and 377) that represent the Latin-1 character equivalent. For example \251 is the octal code for the copyright symbol.
\xXX	XX is a hexadecimal number (between 00 and FF) that represent the Latin-1 character equivalent. For example \xA9 is the hexadecimal code for the copyright symbol.
\uXXXX	XXXX is a hexadecimal number (between 00 and FF) that represent the Unicode character equivalent. For example \u00A9 is the hexadecimal code for the copyright symbol. (Note: Unicode is only supported by JavaScript 1.3)

The string "\tTom said \"Hello to everyone!\"\nSo did Mary." would print:

      Tom said "Hello to everyone!"
So did Mary.