// JSDoc on a symbol renders as documentation inside its hover popup.
/**
 * Adds two numbers together.
 * @param a the first addend
 * @param b the second addend
 * @returns their sum
 */
function 
function add(a: number, b: number): number
Adds two numbers together.
@parama the first addend@paramb the second addend@returnstheir sumadd(
(parameter) a: number
the first addend
@parama the first addenda: number, 
(parameter) b: number
the second addend
@paramb the second addendb: number) {
  return 
(parameter) a: number
the first addend
@parama the first addenda + 
(parameter) b: number
the second addend
@paramb the second addendb
}

const total = 
function add(a: number, b: number): number
Adds two numbers together.
@parama the first addend@paramb the second addend@returnstheir sumadd(1, 2)
const total: number