javascript

cookie工具

原文来自：snippets.barretlee.com，只是为了自己学习收集特意fork了一遍。如有侵权，联系删除：i@webcliwn.net。

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_.cookie = function(name, value, options) {
  if (typeof value === "undefined") {
      var n, v,
          cookies = document.cookie.split(";");
      for (var i = 0; i < cookies.length; i++) {
          n = $.trim(cookies[i].substr(0,cookies[i].indexOf("=")));
          v = cookies[i].substr(cookies[i].indexOf("=")+1);
          if (n === name){
              return unescape(v);
          }
      }
  } else {
      options = options || {};
      if (!value) {
          value = "";
          options.expires = -365;
      } else {
          value = escape(value);
      }
      if (options.expires) {
          var d = new Date();
          d.setDate(d.getDate() + options.expires);
          value += "; expires=" + d.toUTCString();
      }
      if (options.domain) {
          value += "; domain=" + options.domain;
      }
      if (options.path) {
          value += "; path=" + options.path;
      }
      document.cookie = name + "=" + value;
  }
};