Question

I need to replace : with double backslash \\ but the code below is ignoring one slash.

var original_id = $j(element).attr('id'); // e.g. sub:777

var new_id = original_id.split(":");

new_id = new_id.join("\\:");

alert(new_id);  

Instead of displaying sub\\:777, sub\:777 is displayed. The code is ignoring one \ slash.

I would appreciate it if somebody could show me my error.

Answer 1

You must escape the backslashes:

new_id = new_id.join("\\\\:");

See JavaScript Special Characters for some details.