oop-prototypal.js

console.log('========================== PROTOTYPAL ================================')


var ProtoTask = {
    constructor: function(title, complete) {
        this.title = title;
        this.isComplete = complete || false;
    },
    complete: function() {
        return this.isComplete;
    },
    msg: function() {
        console.log(this.title + ' is ' + (this.isComplete ? 'completed' : 'not completed yet'));
    }

}


var myPrTask = Object.create(ProtoTask);
console.log(myPrTask)
myPrTask.constructor('task1');
var myPrTask2 = Object.create(ProtoTask);
myPrTask2.constructor('task2', true)
myPrTask2.sayhi = function() {}

console.log(myPrTask)
console.log(myPrTask.msg())
console.log(myPrTask2)
console.log(myPrTask2.complete())

var UrgentProtoTask = Object.create(ProtoTask);
UrgentProtoTask.constructor = function(title, complete) {
  ProtoTask.constructor.call(this, title, complete);
  this.typeTask = 'urgent'
};

UrgentProtoTask.msg = function() {
    console.log(ProtoTask.msg.call(this) +
    ', but this is ' + this.typeTask)
}

var myUrgPrTask = Object.create(UrgentProtoTask);
myUrgPrTask.constructor('urgent task')
console.log(myUrgPrTask)
console.log(myUrgPrTask.msg())