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Mrrafil [7]
4 years ago
6

Java-Script Concept quiz:

Computers and Technology
1 answer:
In-s [12.5K]4 years ago
5 0

Answer:

Explanation:

1) the versions of JavaScript that are fully supported by all modern browsers ( Except internet explorer 9) are:

C. ECMAScript 3, ECMAScript 5

2) JavaScript is used to implement complex features on a_____

A. web page

3) computer programming tools that are used to store data are called____

C. variables

4) var name = Scott; is the code to create a ____ called "Scott"

D. None of the above

Scott is a variable

5) the key difference between "var" and "let" variables is that____

D. None of the above  

let is used to redefine a variable by using var to redefine may cause problems

6) Hoisting in JavaScript is the process whereby declarations get moved to the____

C. top

7) Im JavaScript, "/ /" is used to code____

A. comments

8) ______ data types have two potential values - true and false.

D. None of the above

Boolean is the data type and null is always false

9) Using ____ gives coders the ability to query data set data to create blueprints.

C. consoles

The Console object provides access to the browser's debugging console.

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RideAnS [48]

Answer:

See explaination

Explanation:

#include<iostream>

#include<map>

using namespace std;

bool contains(int arr[], int size){

map<int,int> nums;

for(int i=0; i< size; i++) nums[arr[i]]=1;

int product;

for(int i=0; i<size-1; i++){

for(int j=i+1;j<size;j++){

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if (nums[product]==1) return true;

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}

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}

int main(){

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cout<<boolalpha <<contains(arr,5)<<endl;

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6 0
3 years ago
Difference between if then and if then else statement ​
Troyanec [42]

Answer:

<em>if..then statement is used to make a decision when there is only two options. </em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>&</em>

<em>you have to write a program that have to choose from three options then we use if..then..else statement.</em>

<h3>I HOPE THIS WILL HELP YOU IF NOT THEN SORRY</h3>

HAVE A GREAT DAY :)

6 0
3 years ago
4.2 lesson practice help plzs
sertanlavr [38]

The output is 21 because c is incremented by 3 until it surpasses 10 and the value of c is added to sum each time the loop runs.

I hope this helps!

8 0
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Answer:

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6 0
3 years ago
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