getCookieByName

Get Cookie value by name using regular expression.

API

getCookieByName

Return

Argument	Description	Type
string	Cookie value, returns empty string if not exists	string

Parameters

Parameter	Description	Type	Default
name	Cookie name	string	Required

Example

Basic Usage

import { getCookieByName } from 'ranuts';

const token = getCookieByName('token');
console.log(token); // Cookie value or empty string

Difference from getCookie

import { getCookie, getCookieByName } from 'ranuts';

// getCookie uses string splitting
const value1 = getCookie('token');

// getCookieByName uses regular expression
const value2 = getCookieByName('token');

// Both have same functionality but different implementation

Check if Cookie Exists

import { getCookieByName } from 'ranuts';

const sessionId = getCookieByName('sessionId');
if (sessionId) {
  console.log('Session ID:', sessionId);
} else {
  console.log('Session ID does not exist');
}

Notes

1. Regex matching: Uses regular expression to match Cookie, supports cases where Cookie name has spaces before/after.
2. Server-side safety: Returns empty string in server-side environments (no window object), won't throw errors.
3. Difference from getCookie: Same functionality, but getCookieByName uses regular expression, getCookie uses string splitting.
4. Return value: Returns empty string when Cookie doesn't exist, not null or undefined.