JavaScript Cookies Read
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JavaScript Cookies Read
The document.cookie property reads all cookies from the web browser.
Read Single Cookie
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<script>
var name = "Steve";
var uName = "";
//Cookie write
document.cookie = "username="+name+";path=/";
// Cookie read all
allcookie=(document.cookie);
// Convert string to array
cookiearray = allcookie.split(";");
// Run through array
cookiearray.forEach(function(element) {
if(element.indexOf("username")>-1)
uName = element.slice((element.indexOf("username=")+9), element.length);
});
// Print the username
document.write(uName);
</script>
</body>
</html>
Read Multiple Cookie
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<script>
var name = "Steve";
var uName = "";
var age = "25";
var uAge = "";
//Cookie write
document.cookie = "username="+name+";path=/";
document.cookie = "userage="+age+";path=/";
// Cookie read all
allcookie=(document.cookie);
// Convert string to array
cookiearray = allcookie.split(";");
// Run through array
cookiearray.forEach(function(element){
if(element.indexOf("username")>-1)
uName = element.slice((element.indexOf("username=")+9), element.length);
if(element.indexOf("userage")>-1)
uAge = element.slice((element.indexOf("userage=")+8), element.length);
});
// Print the username
document.write(uName+" is "+uAge+" years old.");
</script>
</body>
</html>
Read Object Cookie
Tips: To convert a string to an object, use JSON.parse
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<script>
var bike ={
company: "honda",
model: "CBR 1000RR",
color: "Red"
};
var uBike = "";
//Cookie write
document.cookie = "userbike="+JSON.stringify(bike)+";path=/";
//Cookie read all
allcookie=(document.cookie);
//Convert string to array
cookiearray = allcookie.split(";");
//Run through array
cookiearray.forEach(function(element) {
if(element.indexOf("userbike")>-1)
uBike = element.slice((element.indexOf("userbike=")+9), element.length);
});
//Convert string to object
uBike = JSON.parse(uBike);
// Print the name
document.write(uBike.company);
</script>
</body>
</html>
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