Основы JS

Quiz
•
Computers
•
5th Grade
•
Hard
Никита Корнилов
Used 103+ times
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Что выведет на экран следующий код? alert(Math.floor(Math.random());
1
undefined
0
null
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Как правильно писать IF конструкцию в JavaScript?
if i == 5 then
if i = 5
if i = 5 then
if (i == 5)
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Какие из этих вариантов задают массив из элементов «a», «b»?
var a = new Array("a","b")
var a = [ "a", "b" ]
var a = ( "a", "b" )
var a = "a", "b"
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Чему равна длина arr.length массива arr?
var arr = [];
arr[1] = 1;
arr[3] = 33;
0
1
3
4
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
После какого HTML тега нужно вставить JavaScript?
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Как начать WHILE цикл?
while (i <= 7)
while i = 1 to 7
while (i <= 7; i++)
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Как начать FOR цикл?
for (i = 0; i <= 10; i++)
for (i = 0; i <= 10)
for (i <= 10; i++)
for i = 1 to 10
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