关于cookie和storage的一些总结

module.exports = {

    setStorage: function(key, value) {
		localStorage.setItem(key, value);
	},

	getStorage: function(key) {
		if(!localStorage.getItem(key)) return "";
		return localStorage.getItem(key);
	},

	clearStorage: function(key) {
		localStorage.removeItem(key);
	},

	clearAllStorage: () {
		localStorage.clear();
	},

	setCookie: function(c_name, value, expiredays = 365) {

		if(value == undefined) {
			value = '';
		}
		var exdate = new Date()
		exdate.setDate(exdate.getDate() + expiredays)
		document.cookie = c_name + "=" + escape(value) +
			((expiredays == null) ? "" : ";expires=" + exdate.toGMTString())
	},

	getCookie: function(c_name) {

		if(document.cookie.length > 0) {
			var c_start = document.cookie.indexOf(c_name + "=")
			if(c_start != -1) {
				c_start = c_start + c_name.length + 1
				c_end = document.cookie.indexOf(";", c_start)
				if(c_end == -1) c_end = document.cookie.length
				return unescape(document.cookie.substring(c_start, c_end))
			}
		}
		return "";
	},

	clearAllCookie: () {
		var keys = document.cookie.match(/[^ =;]+(?==)/g);
		if(keys) {
			for(var i = keys.length; i--;)
			document.cookie = keys[i] + '=0;expires=' + new Date(0).toUTCString();
			
		}

	}

};