JavaScript Arrays

JavaScript Arrays

Professional Development

15 Qs

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JavaScript Arrays

JavaScript Arrays

Assessment

Quiz

Computers

Professional Development

Hard

Created by

Thomas Martinez

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is first index value of an array?

2

-1

0

1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the name of the JavaScript standard?

JavaScript

ECMA Script (ES)

JS

PEP

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The _________ method is used to add a new element to an array

add()

insert()

push()

set()

All the above

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Array elements can be deleted using which of these methods?

pop()

shift()

both pop() and shift()

none of the above

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

What will be the output of this code?

[8, 6, 7, 9]

[4]

8, 6, 7, 9

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the 3-dot operator (…) do in JS?

It is used to spread iterables to individual elements

It is used to describe a datatype of undefined size

No such operator exists

None of the above

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

20

25

undefined

None of the above

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