var str = "Hello\\\World\\\";
var newStr = str.replace("\\\", "");
alert(newStr); // I want this to alert: HelloWorld
The number of slashes is always 3, not more not less. How can I replace them? The code above doesn't work at all. I've played around a bit with the global flag, escaping the slashes etc but can't figure it out.
Firstly, you need to escape each slash with another backslash, as mentioned by @Bathsheba.
Additionally, you want your replacement regex to be global:
var str = "Hello\\\\\\World\\\\\\";
var newStr = str.replace(/\\\\\\/g, "");
alert(newStr); // I want this to alert: HelloWorld
If you want three slashes in a row in a string literal then you need to escape each one in turn:
var str = "Hello\\\\\\World\\\\\\";
var newStr = str.replace("\\\\\\", "");
In your current string, \\\W would be one slash and an error as \W is not a valid sequence. (Some more examples: \\ is a single slash, \t a tab, \" a quotation character).
Try this regex \\\\\\ for replace
\\ indicates \
There are 12 characters with special meanings: the backslash \, the caret ^, the dollar sign $, the period or dot ., the vertical bar or pipe symbol |, the question mark ?, the asterisk or star *, the plus sign +, the opening parenthesis (, the closing parenthesis ), and the opening square bracket [, the opening curly brace {, These special characters are often called "metacharacters".
If you want to use any of these characters as a literal in a regex, you need to escape them with a backslash.
