oop-classical.js

console.log('========================== CLASSICAL ================================')


function ClassicalTask(title, complete) {
    this.title = title;
    this.isComplete = complete || false;
}

ClassicalTask.prototype.complete = function() {
    return this.isComplete;
}
ClassicalTask.prototype.msg = function() {
    console.log(this.title + ' is ' + (this.isComplete ? 'completed' : 'not completed yet'));
}

var myTask = new ClassicalTask('task1');
var myTask2 = new ClassicalTask('task2', true);

console.log(myTask)
console.log(myTask2)

myTask2.checkCompleteTask = function() {
  this.isComplete = true;
  console.log(this.complete());
}

console.log(myTask.msg())
console.log(myTask2.checkCompleteTask())

function UrgentClassicalTask(title, complete){
    ClassicalTask.call(this, title, complete);
    this.typeTask = 'urgent';
}
 // UrgentClassicalTask.prototype = ClassicalTask.prototype
 // UrgentClassicalTask.prototype = new ClassicalTask()
UrgentClassicalTask.prototype = Object.create(ClassicalTask.prototype);
UrgentClassicalTask.prototype.msg = function() {
    console.log(ClassicalTask.prototype.msg.call(this) + ', but this is ' + this.typeTask);
}
var myUrTask = new UrgentClassicalTask('urgent task');

console.log(myUrTask)
console.log(myUrTask.msg())