This behavior doesn't match that of string literals anywhere else and I can't think of a reason for it. As the forward slash (/) is special character in regular expressions, it has to be escaped with a backward slash (\). I have been having some problems with regular expressions. And how would you go about doing it? Posted by: admin January 29, 2018 Leave a comment. */ The benefit of this is that Quotation symbols do not need to be escaped. Escaping back slash javascript through regex. When calling a RegExp constructor, you have to double each of the two backslashes in the string argument passed to the constructor, like this: "\\\\". You can just replace like this, var someString = "23/03/2012"; someString. Do you have to escape a forward slash / in a regular expression? You could choose another, such as m{}. Replace forward slash "/ " character in JavaScript string?, To escape them, put a backslash ( \ ) in front of it. To remove the characters, use for example replaceAll(String regex, String replacement). Since this is a common symbol in URLs, it is good to keep this in mind while constructing or copying regexes in JavaScript. You can still take a look, but it might be a bit quirky. In JavaScript a regex is enclosed in forward slashes like so: /. 374. See this link please: link. I have a regex which finds a string pattern of any of the following formats . Questions: I don’t have much experience with JavaScript but i’m trying to create a tag system which, instead of using @ or #, would use /. Remove all forward slash occurrences with blank char in Javascript . The string is first separated on the basis of the forward slash as the separator. For a global replacement, or if you prefer Use a regex literal with the g modifier, and escape the forward slash with a backslash so it doesn't clash with the delimiters. Note that, to match a backslash verbatim, in accordance with JavaScript regular expression syntax you need two backslash characters in your regular expression literals such as /\\/ or /\\/g. You do so by escaping the escape symbol with \\ . Then escaping isn't necessary. > Okay! I want a forward slash in front of the $1 but nothing seems to work. Ben McCormick. Alert Moderator Responses. pascal. @jrieken that seems to work in the regex section but not in the format section. Copy link untitaker commented Dec 1, 2014. Posted by: admin January 12, 2018 Leave a comment. I've tried doing var slash = '/' and adding + slash +, but that failed. If we are creating a regular expression with new RegExp, then we don’t have to escape /, but need to do some other escaping. Home » Javascript » Matching a Forward Slash with a regex. 7th March 2011 at 20:40 Alex that was funny. Here are a few options: In Perl, you can choose alternate delimiters. javascript,regex I don't understand why it would give me two hellos back? June 28, 2018, 3:48am #1. Since forward slashes are used to enclose patterns in the above example, you have to escape the forward slash ( / ) with a backslash ( \ ) if you want to use it as a part of the regex. Home » Java » Forward slash in Java Regex. For instance, consider this: let regexp = new RegExp("\d\.\d"); alert( "Chapter 5.1".match(regexp) ); // null. Ask Question Asked 8 years, 10 months ago. Here, I have blocked to type special characters for all input type in my mobile browser. fix(input): escape forward slash in email regexp … 9b011b6 This messed up with syntax coloring and variable hovering in chrome developer tools and made debugging really difficult. JavaScript. Amanjot Singh. Is the back slash escaped or do I need to try any other way. Regex date format for dash or forward slash. 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