Simple js for converting cookie string into object

cookies.js

cookies = {};
// read out cookies
document.cookie.replace(/([^=;]+)=([^;]*)/gi, function(m,key,value) {cookies[key.replace(/(^\s+|\s+$)/g,'')] = value.replace(/(^\s+|\s+$)/g,'');});

is there an explanation for the code it works thank you a lot but I just wanna know how it worked <3

Sure. document.cookie is basically just a string every cookie is a key value pair separated by an ;. So the pattern is <key: name of the cookie>=<value: well, the value of the cookie>[; ... next, and so on].

What this snippet does is break up the key and value part with regex.
([^=;]+)= (key) -> find everything without an = and a ; until an = comes
([^;]*) (value) -> find everything without a ; but * it is optional (empty values)

All matches ( within the (...) ) are passed to a function.
This function fills up the previously declared cookies variable as an assoc array.

replace(/(^\s+|\s+$)/g,'') is just to remove whitespace in front and back. You could replace it with an trim() nowadays.

That's it.

thank you brother

…

On Sun, 24 Oct 2021 at 11:02, Jan Guth ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ Sure. document.cookie is basically just a string every cookie is a key value pair separated by an ;. So the pattern is <key: name of the cookie>=<value: well value of the cookie>[; ... next, and so on. What this snippet does is break up the key and value part with regex. ([^=;]+)= (key) -> find everything without an = and a ; until an = comes ([^;]*) (value) -> find everything without a ; but * it is optional (empty values) All matches ( within the (...) ) are passed to a function. This function fills up the previously declared cookies variable as an assoc array. replace(/(^\s+|\s+$)/g,'') is just to remove whitespace in front and back. You could replace it with an trim() nowadays. That's it. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <https://gist.github.com/10289901#gistcomment-3937652>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ASDESVHMK5PLJTIHL3ARFLTUIO4SPANCNFSM5GRIQRTQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.