How do I create and read a value from cookie with javascript?
Handling cookies in JavaScript primarily involves the following steps: creation, reading, and setting expiration dates. I will explain each step in detail, providing corresponding code examples.Creating CookiesWe can use the property to create cookies. Creating cookies primarily involves assigning a value to , which is a string that typically includes the cookie's name, value, and other optional attributes (such as expiration date, path, and domain).In this example, the function accepts three parameters: (the cookie's name), (the cookie's value), and (the cookie's expiration period in days). If the parameter is provided, we calculate the specific expiration date and set it. Finally, we set the cookie in the browser using .Reading CookiesReading cookies involves using the property. This property contains a string that includes all cookies set for the current domain (name and value). We need to write a function to parse this string to retrieve the value of the specific cookie we're interested in.This function searches for a cookie matching the specified name. It iterates through all cookies by splitting the string and checks if each cookie's name matches the provided name.Setting Cookie ExpirationWhen creating cookies, we already covered setting expiration dates using the attribute within the function. To delete a cookie, simply set its expiration time to a past date.This function sets the cookie's expiration time to January 1, 1970 (a past date), causing the browser to remove the cookie.These are the fundamental operations for working with cookies in JavaScript. I hope this helps you understand how to handle cookies in web applications.