TS Non-Null Assertion Operator


### Suffix Exclamation Mark after Variable
adding this operator causes the compiler to ignore **undefined** or **null** types
we should be extremely careful when using it, as it can lead to unexpected behavior if the **value** is actually **undefined**



> [Exclamation Mark In TypeScript](https://vhudyma-blog.eu/exclamation-mark-operator-in-typescript/)





