Read a javascript cookie by name

Question

I have set a cookie using

document.cookie = 
    \'MYBIGCOOKIE=\' + value + 
    \'; expires=\' + now.toGMTString() + 
    \'; path=/\';

No

Answer 1

Use the RegExp constructor and multiple replacements to clarify the syntax:

function getCook(cookiename) 
  {
  // Get name followed by anything except a semicolon
  var cookiestring=RegExp(cookiename+"=[^;]+").exec(document.cookie);
  // Return everything after the equal sign, or an empty string if the cookie name not found
  return decodeURIComponent(!!cookiestring ? cookiestring.toString().replace(/^[^=]+./,"") : "");
  }

//Sample usage
var cookieValue = getCook('MYBIGCOOKIE');