Ever wonder why this not that? Just Kidding!!
Finally, it’s time to overcome Fear!
Optional types - Accessing a property that doesn’t exist evaluates to undefined
Immutable - Data cannot be changed (might be thinking about const but that is not enough).
Sometimes you need this but won't work in some cases.
Also, so many libraries around, what to use, and any better optimize library which can replace it.
For any query or suggestion, feel free to mail me at firstname.lastname@example.org