In JavaScript you can add special characters to a text string by using the backslash sign.

Insert Special Characters



The backslash (\) is used to insert apostrophes, new lines, quotes, and other special characters into a text string.

Look at the following JavaScript code:
Code:
var txt="We are the so-called "Vikings" from the north.";
document.write(txt);
In JavaScript, a string is started and stopped with either single or double quotes. This means that the string above will be chopped to:
Code:
We  are the so-called
To solve this problem, you must place a backslash (\) before each double quote in "Viking". This turns each double quote into a string literal:
Code:
var txt="We are the so-called \"Vikings\" from the north.";
document.write(txt);
JavaScript will now output the proper text string: We are the so-called "Vikings" from the north.

The table below lists other special characters that can be added to a text string with the backslash sign:
Code:
Code    Outputs
\'        single quote
\"        double quote
\\        backslash
\n        new line
\r        carriage return
\t        tab
\b        backspace
\f        form feed