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javascript quiz questions and answers

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Abstract answered on June 12, 2022 Popularity 10/10 Helpfulness 2/10

answer javascript quiz questions and answers

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javascript quiz questions and answers

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Below are some helpful JS questions and awnsers to test you JS skills:

Q1) - Which of the following is an advantage of using JavaScript?
A - Less server interaction
B - Immediate feedback to the visitors
C - Increased interactivity
D - All of the above.
(ANSWER) - D

Q2) - Can you assign a anonymous function to a variable?
A - true
B - false
(ANSWER) - A

Q3) - Which of the following type of variable takes precedence over 
other if names are same?
A - global variable
B - local variable
C - Both of the above.
D - None of the above.
(ANSWER) - B

Q4) - Which built-in method reverses the order of the elements of 
an array?
A - changeOrder(order)
B - reverse()
C - sort(order)
D - None of the above.
(ANSWER) - B

Q5) - Which of the following function of Array object applies a function 
simultaneously against two values of the array (from right-to-left) as to 
reduce it to a single value?
A - pop()
B - push()
C - reduce()
D - reduceRight()
(ANSWER) - D

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript

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Contributed on Jul 02 2022

Abstract

0 Answers Avg Quality 2/10

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quiz javascript

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YOUR MISSION
Google maps recently discovered a mysterious place last week...
They need you to calculate new data on this unknown archipel...
Do you feel ready to continue this adventure?
 
INSTRUCTIONS :
Return the truncated percentage of islands on the map.

EXEMPLES
[
  [0,0,0,0,0],
  [1,1,0,0,0],
  [1,1,0,0,0],
  [0,0,0,1,1],
]
=>30%
const map=[
  [0,0,0,0,0],
  [1,1,0,0,0],
  [1,1,0,0,0],
  [0,0,0,1,1],
];
function count Islands(map){
  return map.reduce((count Island,row)=>{
    return count Island+row.filter(Boolean).length
  },0);
}

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Jun 20 2022

DvLpr KETVMV

0 Answers Avg Quality 2/10

how to make a quiz in javascript

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There are several steps: 
1. Learn Javascript
2. Solve some questions
3. Read Javascript code
4. Start making some simple questions
5. Get someone's feedback
6. Improve the quality of questions
7... Do it again and again

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Jun 12 2022

Himanshu Jangid

0 Answers Avg Quality 2/10

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