The backslash will be … I think this can only be done by getting an unescaped ' in there. for ? The syntax of \' will always be a single quote, and the syntax of \" will always be a double quote, without any fear of breaking the string. The above code will run successfully, because the browser encounters the backslash, it knows not to try to interpret the next character. This function makes a string portable, so it can be transmitted across any network to any computer that supports ASCII characters. The sequences \\, \' and \" are used to escape the character that follows the backslash. Having recently written about character references in HTML and escape sequences in CSS, I figured it would be interesting to look into JavaScript character escapes as well. The resulting helper looks like this: The String#replaceAll() interprets the argument as a regular expression.The \ is an escape character in both String and regex.You need to double-escape it for regex: string.replaceAll("\\", "\\\\"); But you don’t necessarily need regex for this, simply because you want an exact character-by-character replacement and you don’t need patterns here. If \' is always unaffected no matter context, try \\'. If you are lucky, nothing is done about the first backslash. JavaScript also uses backslash as an escape character. The solution to avoid this problem, is to use the backslash escape character.. Hi, I am trying to escape backslash using regular expression in javascript. Is the back slash escaped or do I need to try any other way. The following characters are reserved in JavaScript and must be properly escaped to be used in strings: Horizontal Tab is replaced with \t; Vertical Tab is replaced with \v [^1] A character can be: Switch to a general JavaScript context. The backslash (\) escape character turns … End the script block to get into an HTML context. JSON is based on a subset of the JavaScript Programming Language, therefore, JSON also uses backslash as the escape character: A string is a sequence of zero or more Unicode characters, wrapped in double quotes, using backslash escapes. JavaScript uses the \(backslash) as an escape characters for: \' single quote \" double quote \ backslash \n new line \r carriage return \t tab \b backspace \f form feed For example, to echo a PHP variable into JavaScript code: \? While similar to non-escape sequences, where the leading backslash is simply ignored (i.e. JavaScript String Escape / Unescape. Character codes, code points, and code units. For the first one, you just need to go through the input string and replace each character which needs escaping by a proper escape sequence. It does not show backslash in the console but it does in the return value. Another essential PHP function that comes in handy when passing data to JavaScript is addslashes which will add a backslash before: backslashes, single- and double-quotes. The escape() function encodes a string. Is it possible to escape backslash using regular expression because "replace function " does not seem to make a difference in output. Use encodeURI() or encodeURIComponent() instead. Escapes or unescapes a JavaScript string removing traces of offending characters that could prevent interpretation. See this link please: link. The string will be chopped to "We are the so-called ". If an escape option is false, then the corresponding escape sequence will be treated like any other backslash before a non-escape character. For the second one, you need to return an IHtmlString to tell Razor that the string is already properly escaped and doesn’t require additional escaping. While you are at it, try different numbers of backslashes, just in case. Additionally, the sequence \0, when not followed by a digit between 0 and 7, can be used to escape the null character (U+0000).. This is because Javascript strings are UTF-16, which actually sees these as two characters ("".length === 2). Escaping Double and Single Quotes. A code point (also known as “character code”) is a numerical representation of a specific Unicode character. The escape() function was deprecated in JavaScript version 1.5. Using the Escape Character (\) We can use the backslash (\) escape character to prevent JavaScript from interpreting a quote as the end of the string. A non-escape character a JavaScript string removing traces of offending characters that could prevent interpretation make difference. 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