CODE EXAMPLE FOR TYPESCRIPT

readonly in typescript

class Employee {
    readonly empCode: number;
    empName: string;
    
    constructor(code: number, name: string)     {
        this.empCode = code;
        this.empName = name;
    }
}
let emp = new Employee(10, "John");
emp.empCode = 20; //Compiler Error
emp.empName = 'Bill';