How Do I Create and Read Cookies in JavaScript?

Creating and Reading Cookies in JavaScript

Cookies are small text files that websites use to store information on users' devices. In JavaScript, there are several functions you can use to work with cookies.

Creating a Cookie

To create a cookie, use the createCookie function. This function takes three parameters:

• name: The name of the cookie.
• value: The value to store in the cookie.
• days: The number of days the cookie should expire in (optional).

Example:

createCookie("user_name", "John Doe", 30);

Reading a Cookie

To read a cookie, use the getCookie function. This function takes one parameter:

• c_name: The name of the cookie to retrieve.

Example:

var username = getCookie("user_name");

The above code assigns the value of the "user_name" cookie to the username variable. If the cookie does not exist, the username variable will be an empty string.

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