java script
Quiz
•
Computers
•
12th Grade
•
Practice Problem
•
Medium
Aksana Mironchyk
Used 22+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
С каких символа или символов начинается однострочный комментарий в JavaScript?
//
#
/*
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Что выведет этот код?
let y = 1;
let x = y;
x=2;
alert(x);
1
2
x
у = 2
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Где верно указан вывод данных?
write("Hello")
prompt("Hello")
console.log("Hello")
print(Hello)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Нумерация элементов массивов начинается с
1
0
с любого числа, которое задаст пользователь
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Что выдаст данный скрипт:
var a = [35,21,13,8,5,3,2,1];
alert(a[3]+7); ?
20
15
10
7
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Что вернет следующий код: (10> 9) || (5<=2)
false
true
NaN
1
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Что выведет alert(n) ?
var n = 2;
n += 6;
n *= 3;
alert(n);
2
24
6
3
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