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Js the fourth

Authored by Károly Lukács

Computers

12th Grade

Js the fourth
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mit ír ki?

var course = {name: "JS", lessons: 41};

document.write(course.name.length);

2

4

41

JS

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Melyik beépített tulajdonsággal lehet meghatározni egy objektum tulajdonságának a karakterhosszát?

width

size

length

write

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Milyen kulcsszót használjuk egy objektum példányának a létrehozásához?

var

make

inst

new

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mit ír ki? function person (name, age)

{ this.name = name; this.age = age;}

var John = new person("John", 25);

var James = new person("James", 21);

document.write(John.age);

age

25

21

John.age

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mi hiányzik a kipontozott helyekről?

simba = ...category: "lion", gender: "male" ...

zárojelek

kapcsos zárójelek

szögletes zárójelek

semmi

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mit ír ki?

var p = new person("David", 21);

p.changeName("John");

document.write(p.name);

David

John

p.name

new person

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mit ír ki? function person(name, age) {

this.name= name; this.age = age;

this.yearOfBirth = bornYear;}

function bornYear() {return 2016 - this.age;}

var p = new person("A", 22);document.write(p.yearOfBirth());

2016

22

1994

p.yearOfBirth

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