Does JavaScript have a built-in function like PHP's addslashes (or addcslashes) function to add backslashes to characters that need escaping in a string?
For example, this:
This is a demo string with 'single-quotes' and "double-quotes".
...would become:
This is a demo string with \'single-quotes\' and \"double-quotes\".
http://locutus.io/php/strings/addslashes/
function addslashes( str ) {
return (str + '').replace(/[\\"']/g, '\\$&').replace(/\u0000/g, '\\0');
}
You can also use this
let str = "hello single ' double \" and slash \\ yippie";
let escapeStr = escape(str);
document.write("<b>str : </b>"+str);
document.write("<br/><b>escapeStr : </b>"+escapeStr);
document.write("<br/><b>unEscapeStr : </b> "+unescape(escapeStr));