如何在Javascript中解析一个Cookie中的多个值

Question

I have a cookie that stores 5 values separated by commas in one cookie. I'm able to retrieve the value of ExampleCookie as follows (as example):

var CookieValue = readCookie('ExampleCookie'); //returns Foo,Bar,Foo1,FooFighter,Bar2

How do I parse through CookieValue to assign individual variables such that I can assign a variable to each of the 5 parts?

I've found ways to do this with PHP but not javascript.

Thanks in advance for any advice.

Answer 1

use the String.split(delimiter) method

var array = readCookie('ExCook').split(",");

Reference: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/split

Answer 2

You need to make an array from string:

CookieParams = CookieValue.split(",");
CookieParams[0] = Foo
CookieParams[1] = Bar

Answer 3

You could split the CookieValue into individual values in an array via the the split() method.

var valList = CookieValue.split(','); // ["Foo", "Bar", "Foo1", "FooFighter", "Bar2"]

If you then want the values to be assigned to individual variables, you would need to loop through the array and manually make the assignment.

Answer 4

JSON.stringify, and JSON.parse are your best cleanest bets (imho)

var values = JSON.parse(readCookie('ExampleCookie'));

createCookie('ExampleCookie',JSON.stringify(values));

This has the added benefit of being able to set key values in your object/array.

Assuming you're using the functions found at quirks mode just ensure your cookie values stringified don't go over the 4000 char limit found in most browsers.

Answer 5

I quickly realized this was more of a question on Split than about cookies. Here is what i came up w/.

var splits = ExampleCookie.split(","); 
var slot1 = splits[0]; 
var slot2 = splits[1]; 
var slot3 = splits[2]; etc.