Function parseSetCookie

parseSetCookie(cookieStr: string): { name: string; value: string } | null
Parses a raw Set-Cookie header string into its name and value.
Parameters
- cookieStr: string
  The raw Set-Cookie header string (e.g., "sessionId=abc123; HttpOnly; Path=/").
Returns { name: string; value: string } | null
An object with name and value properties, or null if
the string does not contain a valid name‑value pair.
Remarks
This function extracts the first name=value pair before the first
semicolon (if any). It does not parse additional attributes
(e.g., HttpOnly, Secure, Path, Max-Age, Expires). Those are ignored.

The extraction algorithm:
1. Find the first semicolon (;) – everything before it is the name=value part.
2. Split that part at the first equals sign (=) to get name and value.
3. Trim whitespace from name and value.
4. Return null if the name is empty after trimming.
Example
```
const parsed = parseSetCookie('sessionId=abc123; HttpOnly; Path=/');
console.log(parsed); // { name: "sessionId", value: "abc123" }
```
Example
```
parseSetCookie('invalid-cookie'); // null
```
Example
```
parseSetCookie('   name   =   value   ; extra'); // { name: "name", value: "value" }
```
See
parseCookies

Since
0.1.1
- Defined in utils/cookies.ts:111