jquery cookie set value to boolean true

Question

I am using this jquery.cookie plugin and I need to set value to TRUE or NULL/FALSE.

I am trying to do it like this: $.cookie('ff', true, { expires: 30, path: '/' }); but it sets the value to string and not boolean.

Any ways of fixing this?

As far as I know anything stored in cookies is a string, because cookies themselves are strings. So any sort of fix would be on the cookie reading side of it. — d_inevitable, Mar 17 '12 at 18:07
the thing is that I am reading it with `$this->input->cookie();`'s codeigniter function, does php has any function to do so? — Alex, Mar 17 '12 at 18:09

score 17 · Accepted Answer · edited May 23 '17 at 10:31

17

Cookies are only string-valued. As gdoron commented, if you want to treat the value as a boolean, you need to parse it back to a boolean when the cookie value is read back out.

Since you commented that you are reading the cookie value with PHP, see Parsing a string into a boolean value in PHP.

edited May 23 '17 at 10:31

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answered Mar 17 '12 at 18:09

Matt Ball

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any way of parsing to boolean with php? – Alex Mar 17 '12 at 18:10
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Yes, just compare it with the string "true" as i've. – d_inevitable Mar 17 '12 at 18:12

d_inevitable · Answer 2 · 2012-03-17T18:25:00.947

6

Client side:

$.cookie('ff', "true", { expires: 30, path: '/' });

Server side:

$cookie = $this->input->cookie() == "true";

EDIT: Cookies are strings. Anything stored to cookies will need to be converted to strings. Hence you have to do the string to boolean conversion on the reading side of it. Above I have put an example for PHP (CodeIgniter).

edited Mar 17 '12 at 18:25

answered Mar 17 '12 at 18:11

d_inevitable

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Can't say I understand the downvote. What's wrong with this answer? – Matt Ball Mar 17 '12 at 18:13
thanks @MДΓΓ БДLL, I was wondering my self. People could at least give a reason for a down vote :(. I'd be happy to know what is wrong with it too. – d_inevitable Mar 17 '12 at 18:18
I guess they think he wants client side answer not a `php` one. – gdoron Mar 17 '12 at 18:19
@gdoron i guess you are right. Will need to clarify my answer then. – d_inevitable Mar 17 '12 at 18:22

score 1 · Answer 3 · answered Feb 14 '18 at 18:52

If you are just looking to use a cookie as a sort of flag, then just check if the cookie exists and if it does not you can assume it is false:

const isSet = Boolean(cookie.get('my-cookie')) || false

This way you don't need to even worry about the actual value of the cookie and just whether or not it exists.

score 0 · Answer 4 · answered Mar 09 '18 at 02:02

Another way to do this is

var mycookie = !($.cookie("cookiename")=='false')

Or:

if(!($.cookie("cookiename")=='false')){ 
    //mycode 
}

If the value is 'false' then ($.cookie("cookiename")=='false') will return true so we invert it by using ! which return false

if the value is not 'false' then it will return false so we invert it by using ! which return false

jquery cookie set value to boolean true

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