The escape() function was deprecated in JavaScript version 1.5. Use encodeURI() or encodeURIComponent() instead. Switch to a general JavaScript context. 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. Hi, I am trying to escape backslash using regular expression in javascript. JavaScript also uses backslash as an escape character. If \' is always unaffected no matter context, try \\'. The resulting helper looks like this: Character codes, code points, and code units. For example, to echo a PHP variable into JavaScript code: See this link please: link. 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. The string will be chopped to "We are the so-called ". [^1] A character can be: While you are at it, try different numbers of backslashes, just in case. The escape() function encodes a string. 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 It does not show backslash in the console but it does in the return value. The above code will run successfully, because the browser encounters the backslash, it knows not to try to interpret the next character. JavaScript String Escape / Unescape. The backslash (\) escape character turns … Is it possible to escape backslash using regular expression because "replace function " does not seem to make a difference in output. The solution to avoid this problem, is to use the backslash escape character.. \? Escapes or unescapes a JavaScript string removing traces of offending characters that could prevent interpretation. This function makes a string portable, so it can be transmitted across any network to any computer that supports ASCII characters. 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 an escape option is false, then the corresponding escape sequence will be treated like any other backslash before a non-escape character. Escaping Double and Single Quotes. Using the Escape Character (\) We can use the backslash (\) escape character to prevent JavaScript from interpreting a quote as the end of the string. This is because Javascript strings are UTF-16, which actually sees these as two characters ("".length === 2). 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. A code point (also known as “character code”) is a numerical representation of a specific Unicode character. End the script block to get into an HTML context. for ? 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. The sequences \\, \' and \" are used to escape the character that follows the backslash. 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. Is the back slash escaped or do I need to try any other way. 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. 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