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Javascript Cookie Class
Posted by nir_tayeb on Jun 13 2006 @ 15:03 :: 6189 unique visits
About
This class used for create and get cookies in the client side by javascript with High Level API.
The class
CODE: JAVASCRIPT
function Cookie(){
var name, value, expires, path="/", domain, secure=false;
this.setName = function(sName){ name=sName; }
this.getName = function(){ return name; }
this.getValue = function(){
return unescape(
(value instanceof Array)?
value.join("&"):
value
);
}
this.setValue = function(sValue){ value=escape(sValue); }
this.add = function(key, val){
if(!(value instanceof Array)){
var temp = value;
value = [];
if(temp){
value[value.length] = temp;
}
}
value[value.length] = key+"="+escape(val);
}
this.setExpires = function(date){ expires=date; }
this.getExpires = function(){ return expires; }
this.setDomain = function(sD){ domain=sD; }
this.getDomain = function(){ return domain; }
this.setSecure = function(scr){ secure = !!scr; }
this.getSecure = function(){ return secure; }
this.save = function(){
if(name && value){
if(value instanceof Array){
// if the value is as array, we join the array
value=value.join("&");
}
document.cookie = name+'='+escape( value ) +
( ( expires ) ? ';expires='+expires.toGMTString() : '' ) + //expires.toGMTString()
( ( path ) ? ';path=' + path : '' ) +
( ( domain ) ? ';domain=' + domain : '' ) +
( ( secure ) ? ';secure' : '' );
}
}
this.remove = function(){
// The cookie removed if the expires date is before today
expires = new Date(new Date().getTime()-1000*60*60*24);
this.save();
}
};
Cookie.get = function(name){
/*
the document.cookie return a string contains all the cookies available in the browser for the specific domain in format of: Name=Value;Name=Value;Name=Value
this function take only the cookie with the requested name and return a Cookie object with it's value.
if there isn't a cookie with the requested name, the function returns an empty cookie object with the requested name
*/
var start = document.cookie.indexOf( name + "=" );
var len = start + name.length + 1;
var cookie = new Cookie();
if ( !((( !start ) && ( name != document.cookie.substring( 0, name.length ) )) || (start==-1) ) ) {
var end = document.cookie.indexOf( ';', len );
if ( end == -1 ) end = document.cookie.length;
cookie.setValue(unescape( document.cookie.substring( len, end ) ));
}
cookie.setName(name);
return cookie;
}
var name, value, expires, path="/", domain, secure=false;
this.setName = function(sName){ name=sName; }
this.getName = function(){ return name; }
this.getValue = function(){
return unescape(
(value instanceof Array)?
value.join("&"):
value
);
}
this.setValue = function(sValue){ value=escape(sValue); }
this.add = function(key, val){
if(!(value instanceof Array)){
var temp = value;
value = [];
if(temp){
value[value.length] = temp;
}
}
value[value.length] = key+"="+escape(val);
}
this.setExpires = function(date){ expires=date; }
this.getExpires = function(){ return expires; }
this.setDomain = function(sD){ domain=sD; }
this.getDomain = function(){ return domain; }
this.setSecure = function(scr){ secure = !!scr; }
this.getSecure = function(){ return secure; }
this.save = function(){
if(name && value){
if(value instanceof Array){
// if the value is as array, we join the array
value=value.join("&");
}
document.cookie = name+'='+escape( value ) +
( ( expires ) ? ';expires='+expires.toGMTString() : '' ) + //expires.toGMTString()
( ( path ) ? ';path=' + path : '' ) +
( ( domain ) ? ';domain=' + domain : '' ) +
( ( secure ) ? ';secure' : '' );
}
}
this.remove = function(){
// The cookie removed if the expires date is before today
expires = new Date(new Date().getTime()-1000*60*60*24);
this.save();
}
};
Cookie.get = function(name){
/*
the document.cookie return a string contains all the cookies available in the browser for the specific domain in format of: Name=Value;Name=Value;Name=Value
this function take only the cookie with the requested name and return a Cookie object with it's value.
if there isn't a cookie with the requested name, the function returns an empty cookie object with the requested name
*/
var start = document.cookie.indexOf( name + "=" );
var len = start + name.length + 1;
var cookie = new Cookie();
if ( !((( !start ) && ( name != document.cookie.substring( 0, name.length ) )) || (start==-1) ) ) {
var end = document.cookie.indexOf( ';', len );
if ( end == -1 ) end = document.cookie.length;
cookie.setValue(unescape( document.cookie.substring( len, end ) ));
}
cookie.setName(name);
return cookie;
}
The code is based on the setcookie/getcookie functions of "Top 10 custom JavaScript functions of all time".
How to use this class?
CODE: JAVASCRIPT
// Create a new cookie and save it
var c = new Cookie();
c.setName("test");
c.setValue("val");
c.save();
var c1 = new Cookie();
c1.setName("test1");
c1.add("key1","value1");
c1.add("key2","value2");
c1.save();
// Get a cookie and alert it's name and value
var c2 = Cookie.get("test");
alert(c2.getName() + ":" + c2.getValue());
// Remove the cookie
c.remove();
var c = new Cookie();
c.setName("test");
c.setValue("val");
c.save();
var c1 = new Cookie();
c1.setName("test1");
c1.add("key1","value1");
c1.add("key2","value2");
c1.save();
// Get a cookie and alert it's name and value
var c2 = Cookie.get("test");
alert(c2.getName() + ":" + c2.getValue());
// Remove the cookie
c.remove();
28 comments posted so far
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2. On Jun 13 2006 @ 22:57 DooM wrote:
Nice class, really helpful in management of user personal settings(like language, skins etc).3. On Jun 14 2006 @ 11:51 Matthijs wrote:
Usefull class! good work4. On Jun 14 2006 @ 13:18 silverstrike wrote:
Is this Efficient?Look's real good. What about some serious documentation?
5. On Jun 14 2006 @ 13:46 nir_tayeb wrote:
Yes, this is efficient code but less then the getcookie/setcookie/deletecookie functions of the "Top 10 custom JavaScript functions of all time" (link in the post).But as a developer, who love OOP, this is more usefull than the three function above, and more *High Level* - so this is a perfect for common use.
6. On Jun 15 2006 @ 18:06 Matthijs wrote:
Why is the efficiency important? Your cookie won't hold more then 5 values or something, and it all happends clientside anyway...7. On Jun 09 2008 @ 15:45 guest wrote:
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