How can we deare a variable of a class as protected in JavaScript?

Answer 1

By prefixing names by # you can declare them private. I don't know if there is any active proposal for protected field right now.

This feature request is still at stage 3 and browser support is limited. You shouldn't use it in code unless it reaches stage 4 and major browsers finish implementing it.

There is a browser compatibility table and some explaination here :

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/Private_class_fields

More on standardization process:
https://sergioviniciuss.medium.com/ecmascript-standardization-process-94a64acf771f

https://tc39.es/

Answer 2

Thanks omkar

Answer 3

I guess using underscore in front of variable is what javascript is planning.
Like: let _name:"sololearn"