小编Gon*_*ack的帖子

Javascript函数中的继承错误

我以下列方式在JavaScript中应用继承:

var employee = function(name) {
  this.name = name;
}
employee.prototype.getName = function() {
  return this.name;
}
var pEmployee = function(salary) {
  this.salary = salary;
}
pEmployee.prototype.getSalary = function() {
  return this.salary;
}

var employee = new employee("mark");
pEmployee.prototype = employee;
var pe = new pEmployee(5000);
console.log(pe.getName());
console.log(pe.getSalary());

Run Code Online (Sandbox Code Playgroud)

但它在控制台中显示以下错误: