JavaScript backslash (\) in variables is causing an error

Question

In Javascript, when I put a backslash in some variables like:

var ttt = \"aa ///\\\\\\\";
var ttt = \"aa ///\\\"; 

Javascript shows an erro

Answer 1

If you want to use special character in javascript variable value, Escape Character (\) is required.

Backslash in your example is special character, too.

So you should do something like this,

var ttt = "aa ///\\\\\\"; // --> ///\\\

or

var ttt = "aa ///\\"; // --> ///\

But Escape Character not require for user input.

When you press / in prompt box or input field then submit, that means single /.