
Obiekty w JS
Authored by Ann Gum
Computers
12th Grade
Used 5+ times

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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tablica do przechowywania 10 wartości to:
var tab= new Array(10);
var tab=[0,1,2,3,4,5,6,7,8,9,10];
var tab[10];
Array tab[10];
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Która z metod obiektu Array nie istnieje?
copy()
concat()
reverse()
sort()
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Metoda reverse() obiektu Array:
sortuje malejąco elementy
odwraca indeksy tablicy na ujemne
odwraca kolejność elementów tablicy
odwraca wartość elementów w tablicy
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Poprawną deklaracją nowej tablicy jest:
Array tab[];
var tab= new Array[];
var nazwa_tab = new Array();
var nazwa_tab = new Arrays();
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Obiekt typu Array:
nie można dodawać do niego różnego typu danych
można dodawać do niego tylko tablice liczbowe
może mieć zmienny rozmiar
można tworzyć w nim tylko tablice jednowymiarowe
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jak uzyskać długość (ilość znaków) ciągu znaków w JavaScript?
lengthOf()
getSize()
string.length
count()
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Która metoda służy do zamiany wszystkich liter w ciągu znaków na małe litery w JavaScript?
toLowerCase()
toLower()
changeCase('lower')
caseToLower()
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