Update snippet descriptions

This commit is contained in:
Isabelle Viktoria Maciohsek
2020-10-20 23:02:01 +03:00
parent 52880f08ee
commit caa67e2a49
63 changed files with 175 additions and 126 deletions

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@ -3,7 +3,7 @@ title: isUndefined
tags: type,beginner
---
Returns `true` if the specified value is `undefined`, `false` otherwise.
Checks if the specified value is `undefined`.
- Use the strict equality operator to check if `val` is equal to `undefined`.