Type 'null' is not assignable to type 'T'

I have this generic method

class Foo { 
     public static bar(x: T): T {
         ...
         if(x === null)
             return null; //(1);

I'm getting the syntax error


TS2322: Type 'null' is not assignable to type 'T'.

I'm expecting this to compile because T could be null.

what is the proper way to solve this problem

You have to declare the return type as null or turn off strictNullChecks in your tsconfig

public static bar(x: T): T | null

or you could type null as any e.g.

return null as any;

Stack Overflow Q#59715119, score: 264