How to convert literal strings to their escape sequence equivalents? [duplicate]

I have this var

var x = "<div class=\"abcdef\">";

Which is

<div class="abcdef">

But I need

<div class="abcdef">

How can I "" this var to remove all escaping characters?

You can replace a backslash followed by a quote with just a quote via a regular expression and the String#replace function:

var x = "<div class=\"abcdef\">";
x = x.replace(/\"/g, '"');
document.body.appendChild( document.createTextNode("After: " + x)
);

Note that the regex just looks for one backslash; there are two in the literal because you have to escape backslashes in regular expression literals with a backslash (just like in a string literal).

The g at the end of the regex tells replace to work throughout the string ("global"); otherwise, it would replace only the first match.

Try this:

x = x.replace(/\/g, "");

var x = "<div class=\"abcdef\">";
alert(x.replace(/\/gi, ''));

Let me propose this variant:

function un(v) { eval('v = "'+v+'"'); return v; }

This function will not simply remove slashes. Text compiles as code, and in case correct input, you get right unescaping result for any escape sequence.

You need to make there be one backslash instead of three.
Like this:

var x = "<div class="abcdef">";