Cookies: Checking if a cookie exists

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Here’s how you can check if a cookie exists:

if (
  document.cookie.split(';').filter(item => {
    return item.includes('name=')
  }).length
) {
  //name exists
}

Lessons in this unit:

0: Introduction
1: Setting cookies
2: Setting a cookie expiration date
3: Setting a cookie path
4: Setting a cookie domain
5: Cookies security
6: Updating a cookie
7: Deleting a cookie
8: Accessing the value of a cookie
9: ▶︎ Checking if a cookie exists
10: Inspecting cookies
11: Cookie not being set in Safari