Javascript OOP - Նախատիպային ժառանգություն (Prototypal Inheritance) 

let x = {}; nuynne inchpes: let x = new Object(); Aysinkn, Object da function constructor e, vorin kareli e kanchel new Object() vorpesi stananq nor object. Ayt Object function constructor@ uni .prototype iren ktsats, vor@ darnum e nor stextsvats objecti __proto__ arjek@. Hetevabar, let x = new Object(); depkum, x uni ir mech object vori __proto__ nuynne inchpes Object.prototype.

const obj1 = { foo: function() { }, bar() { } }; obj1.foo(); obj1.bar();

Aram jan, xntrum em hetevek ays hertakanutsun@: ru-vid.com/group/PLkVo56yGU5Pqld7f3jtoE-g_755aPT0NV OOP video daserum kgtneq (classical inheritance)

Lav,shat shnorhakalutyun

Che. let a = { name: "Joe" }; alert(a.toString()); // [object Object] alert(JSON.stringify(a)); // {"name":"Joe"}

Object da function constructori anunne. Aysinkn, sa: { } nuyne inchpes sa: new Object(); Hetevabar, [object Object] et egrort@ function constructori anun e. Isk object da uxaki inch structura e.

Portseq))) uxaki _proto_ chi, vochel __proto ayl __proto__

Nikolay jan, uxaki da tents __ ov e grvats vor menq chogtagortsenq. Irakanum, ete uzum eq ayt hxum@ heshtutsyamp stextseq, areq ayspes: const obj1 = {}; const obj2 = Object.create(obj1); // obj2.__proto__ === obj1

__proto__ da banalinn e vorov mi object@ hxum e urish objectin vorits na k jarangi arjekner prototype da anunn@ function constructor banalii vor@ na kdni vorpes nor stextsvats objecti __proto__ arjek@ Aysinkn: functon A() {} A.prototype = { name: "Joe" }; const a = new A(); Nuynne inchpes sa: const a = {}; a.__proto__ = { name: "Joe" };

Taki et tarorinak gtsikner@ hents dra hamar en vor mez zgushatsnen vor da nerkin ban e ev menk lav klini dzerk che tank. Da chi nshanakum chenq karox iren ogtagortsenq, uxaki lezun aracharkum e vor menk iren chogtagortsenq.

@@meschian իսկ ավելի հարմար չէ՞ Object.defineProperties() -ով թույլ չտանք դրսից փոխել ներքին ինֆորմացիան, այսինքն օբյեկտի հատկությունները թույլ չտանք փոխել:

Ayo, hnaravor e aytpes. Uxaki Object.defineProperties@ che kar erp skzbits stextsvets javascript@, hetevabar _ ein ogtagortsum. Hima el _ chen uzum hanen vor che kotren tsragrer@ voronk meka ogtagortsumein et attributner@.

Enekati unek __proto__ erevi, vor@ nuynne inchpes [[Prototype]] stackoverflow.com/questions/9451881/prototype-vs-prototype-what-is-the-difference-mycons-proto-myco

Aram jan, console@ chromei chi textavorum, ayl nkarum e hents objectin - um kareli e hents texum usumnasirel, batsel, nael.

console-i pah@ haskaca Ruben jan. Isk harcis 2-rd masi veraberyal inch kases ?

Aram jan, kareli e ayo - bayts himnakanum aracharkum en tents ban chanenq kani vor browseri koxmits grvats functionner@ misht aveli arag kashxaten kants mer grvatsner@. Plus, karoxa mikich urish dzevov mer grvats functionner@ ashxaten ev inchvor urishi grvats code@ vor@ ogtagortsum e ayt functionn@ karox e jartvi.

@@meschian haskaca Ruben jan, mersi.

Vahe jan, hents Object@ da global e. Ir prototype attribute@ (banalin) uni hxum depi mi objectin vor@ gluxne prototype jarangutsyan shxtai (head of the prototype inheritance chain).

@@meschian mersi Ruben jan

Person.prototype.sayHello = function () { // sa avelatsnum e function prototype objectin vor@ kpats e Person functionin. Erp kanchum enq new Person..., et function@ takits stextsum e mi object vor@ uni __proto__ hxum depi Person.prototype objectin. Hetevabar, ete kancheq person1.sayHello(), person1 objecti mech che ka sayHello function, bayts kani vor __proto__ hxum uni depi mi ayl object vor@ uni sayHello, hnaravor e kanchel person1.sayHello();