escaping - How to escape a JSON string containing newline characters using JavaScript? -

i have form json string in value having new line character. has escaped , posted using ajax call. can 1 suggest way escape string javascript. not using jquery.

take json , .stringify() it. use .replace() method , replace occurrences of \n \\n.

edit:

as far know of, there no well-known js libraries escaping special characters in string. but, chain .replace() method , replace of special characters this:

var myjsonstring = json.stringify(myjson); var myescapedjsonstring = myjsonstring.replace(/\\n/g, "\\n")                                       .replace(/\\'/g, "\\'")                                       .replace(/\\"/g, '\\"')                                       .replace(/\\&/g, "\\&")                                       .replace(/\\r/g, "\\r")                                       .replace(/\\t/g, "\\t")                                       .replace(/\\b/g, "\\b")                                       .replace(/\\f/g, "\\f"); // myescapedjsonstring ready post'ed server.  

but that's pretty nasty, isn't it? enter beauty of functions, in allow break code pieces , keep main flow of script clean, , free of 8 chained .replace() calls. let's put functionality function called, escapespecialchars(). let's go ahead , attach prototype chain of string object, can call escapespecialchars() directly on string objects.

like so:

string.prototype.escapespecialchars = function() {     return this.replace(/\\n/g, "\\n")                .replace(/\\'/g, "\\'")                .replace(/\\"/g, '\\"')                .replace(/\\&/g, "\\&")                .replace(/\\r/g, "\\r")                .replace(/\\t/g, "\\t")                .replace(/\\b/g, "\\b")                .replace(/\\f/g, "\\f"); }; 

once have defined function, main body of our code simple this:

var myjsonstring = json.stringify(myjson); var myescapedjsonstring = myjsonstring.escapespecialchars(); // myescapedjsonstring ready post'ed server