JS Operation Cookie

$ (function () {/** * version 1.0 * Feature: This file is intended to operate cookies via JS, including read and write cookies * Guo June weeks * email:[email protected] * Use example: * window. __cookie.setcookie (String key,string value,int time); * Window.__cookie.getcookie (string key); * Note: * 1:cookie is saved as a string in Document.cookie * The 2:window object holds a read-only reference to the Document object. This determines that we can obtain this cookie string through the Window.document.cookie * method, but it is not possible to assign a value to a cookie in this way. That is: * Window.document.cookie = ' aaa '; Does not change the cookie * At this time, we should pass Document.cookie = ' AAA '; The way to make changes to the cookie * 3: A few notes on the expiry time of the cookie: * 3.1: This time, in "milliseconds", 1000ms = 1s; * 3.2: only if the "key value pair" in the cookie has not expired, document.cookie Has the string form of the key-value pair. * In short, when obtaining a cookie, you do not need to manually verify the expiration time, because if it expires, you will not get this value. * 3.3: As to, the key value pair, whether the expiration, and the expiration of processing, is implemented by the browser itself. * 4: Note on Key,value,expire when setting cookies: * 4.1: Recommended Window.__cookie.setcookie (String,string,int). The following method of invocation may cause a variety of inexplicable problems, not recommended. * Window.__cookie.setcookie (1,2,30000); * Window.__cookie.setcookie (', 2,30000); * Window.__cookie.setcookie (2, ', 30000); * Window.__cookie.setcookie (3, ', 30000); * Window.__cookie.setcookiE (' _ ', ', 30000); * Window.__cookie.setcookie (-1, ', 30000); * Window.__cookie.setcookie ('; ', ', 30000); * 4.2:setcookie and GetCookie parameter description: * There is no excessive validation of its parameters, such as: Key should satisfy the naming conventions of variables. Because PHP does have the ability to handle associative arrays. **/Window.__cookie = {' cookieenabled ': window.navigator.cookieEnabled, ' Setcookie ': function (key,value,expire) {if (! this.cookieenabled) {alert (' Browser not open or cookie function! '); return false;} var exdate = new Date (); Exdate.settime (Exdate.gettime () +expire); var c_nvalue=escape (value) + ((expire==null)? "" : "; Expires= "+exdate.toutcstring ()); if (This.getcookie (key) = = null) {Document.cookie = key + "=" + C_nvalue + document.cookie;} else{var c_value = Window.document.cookie; var c_start = C_value.indexof ("" + key + "="); if (C_start = =-1) {C_start = C_value.indexof (key + "="),} C_start = C_value.indexof ("=", C_start) + 1; var c_end = C_value.indexof (";", C_start); if (c_end = =-1) {c_end = c_value.length;} document.cookie = C_value.substring (0,c_start) + C_nvalue + c_value.substring (c _end,c_value.length); }}, ' GetCookie ': function (c_name) {if (!this.cookieenabled) {alert (' Browser not open or cookie function! '); return false;} var c_value = wi Ndow.document.cookie; var C_start = C_value.indexof ("" + c_name + "="); if (C_start = =-1) {C_start = C_value.indexof (c_name + "=");} if (C_start = =-1) {c_value = null;} else{C_start = c_value.indexof ("=", C_start) + 1; var c_end = C_value.indexof (";", C_start); if (c_end = = 1) {c_end = C_v Alue.length; } C_value = Unescape (c_value.substring (c_start,c_end)); } return c_value; } }});

JS Action Cookie