Update/Add string values based on another string

Question

I'm trying to create manual browser cookie emulation using Node.js.

Basically I have two strings, once containing the current cookie and the other containing new or updated values to be added to the cookie. I want to update the old string with the new one by replacing or adding values. How can I achieve this via javascript?

For example:

PREF=ID=2191324fe41c6152:FF=0:TM=1320223272:LM=1320223272:S=H6-vdbEpgEzHAknb;
Foo=kfjaofjiof382f3gio;
expires=Fri, 01-Nov-2013 08:41:12 GMT; path=/; HTTPonly;

Is updated with

PREF=ID=435:FF=2:TM=1320223272:LM=1320223272:S=zzHAknb; Name=23;
expires=Fri, 01-Nov-2013 08:41:12 GMT; path=/; HTTPonly;

Returns

PREF=ID=435:FF=2:TM=1320223272:LM=1320223272:S=zzHAknb; Name=23;
Foo=kfjaofjiof382f3gio;
expires=Fri, 01-Nov-2013 08:41:12 GMT; path=/; HTTPonly;

Split strings, put data of first in object, overwrite keys with second object, stringify again? — thejh
– thejh, Commented Nov 2, 2011 at 8:54

Community · Accepted Answer · 2017-05-23 12:14:04Z

0

function string_replace(haystack, find, sub) //replaces all occurences of find with sub
 {
    return haystack.split(find).join(sub);
 } 

function string_add(haystack,upgrade){return haystack+upgrade;}

I think you can do the rest.

Thanks to bobnice of Javascript - how to replace a sub-string?.

edited May 23, 2017 at 12:14

CommunityBot

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answered Nov 2, 2011 at 8:56

Kris

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1 Comment

Kris Over a year ago

or if you want to replace the values, go with a regex approach.

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