Job offers
Companies
Tests
Blog
I'm an employer
Sign up
Log in
Group 2@2x
Created with Sketch.
Home
>
IT Tests
>
Vincent Cotro
Vincent Cotro
Contribution
1582
Contributions
83740
Contributions played
Tests
44
Tests completed
525
Questions completed
Moderation
145
Questions
47
Ratings
Achievements
+2
Tests
Contributions
Achievements
Submit a new question
or
see all questions
Easy
82
Medium
59
Hard
31
Expert
10
Technology
Profession
Sort by
Newest
Most popular
Last review
Filter by
Published
151
Not published
31
To review
0
Published
To review
Newest
Filters
Easy
82
Medium
59
Hard
31
Expert
10
Technology
Profession
Sort by
Newest
Most popular
Last review
Filter by
Published
151
Not published
31
To review
0
Cancel
151 questions
1
2
3
4
5
…
8
Easy
17 votes
977 runs
0 comment
Explain the difference between the `include` and `require` functions in PHP.
Back-end developer
functions
errors
at Mar 24, 2023
Easy
14 votes
801 runs
0 comment
Write a Python function that returns the factorial of a number.
Back-end developer
recursion
at Mar 28, 2023
Easy
5 votes
888 runs
0 comment
Write a React component that updates the document title with each click and resets to 'React App' when the component unmounts.
Web developer
react
hooks
useState
at Apr 5, 2023
Easy
5 votes
670 runs
2 comments
Use the `useContext` hook to render a button with a dark theme.
Web developer
react
context
hooks
at Nov 7, 2023
Easy
5 votes
606 runs
0 comment
Write a function in TypeScript that takes a number as input and returns its square.
Web developer
functions
typescript
at Mar 31, 2023
Easy
4 votes
551 runs
1 comment
Change the style of a button using the `useState` hook in React.
Web developer
react
state
style
at Apr 10, 2023
Vincent Cotro
Vincent Cotro
Vincent Cotro
Vincent Cotro
Vincent Cotro
Vincent Cotro
Medium
21 votes
1746 runs
2 comments
Write a JavaScript function that fetches data from an API and logs it to the console.
Web developer
promises
async
at Mar 28, 2023
Medium
34 votes
1906 runs
3 comments
Understanding the differences between `map()` and `forEach()` methods in JavaScript
Web developer
at Jan 18, 2024
Easy
4 votes
1066 runs
0 comment
Write a SQL query to retrieve employees with a salary higher than the average salary.
Back-end developer
sql
average
select
at Mar 28, 2023
Easy
4 votes
1457 runs
2 comments
Write an INNER JOIN query in SQL
Back-end developer
sql
join
at Mar 27, 2023
Easy
7 votes
1471 runs
0 comment
Write a SQL query to insert data into a table
Back-end developer
sql
insert
at Mar 27, 2023
Medium
8 votes
1422 runs
1 comment
Write the SQL query to delete a column from a table
Back-end developer
sql
table
column
at Mar 27, 2023
Easy
8 votes
1460 runs
0 comment
Which SQL keyword is used to sort the result of a SELECT statement?
Back-end developer
sql
order by
at Mar 27, 2023
Easy
9 votes
1430 runs
1 comment
Update a column in an SQL table
Back-end developer
sql
update
at Nov 7, 2023
Easy
9 votes
1466 runs
0 comment
Select only distinct values in a column using SQL
Back-end developer
sql
distinct
at Mar 27, 2023
Easy
16 votes
1484 runs
0 comment
Write a SQL query to retrieve the list of employees with a salary greater than 5100.
Back-end developer
sql
select
where
at Mar 30, 2023
Vincent Cotro
Vincent Cotro
Vincent Cotro
Vincent Cotro
Vincent Cotro
Vincent Cotro
Vincent Cotro
Vincent Cotro
Vincent Cotro
Hard
5 votes
212 runs
1 comment
How to overwrite a property in an object in Javascript
Front-end developer
objects
duplicates
at Sep 19, 2022
Vincent Cotro
Medium
4 votes
2239 runs
1 comment
Print the number of countries in the array travel.
Web developer
array
for loop
at Sep 5, 2022
Easy
4 votes
603 runs
0 comment
Which of the following utility types makes all properties of a given type optional?
Web developer
typescript
types
at Mar 29, 2023
Easy
4 votes
599 runs
0 comment
Define a custom type that represents a coordinate with an x and y property of type number in Typescript
Web developer
typescript
type
at Mar 31, 2023
Vincent Cotro
Vincent Cotro
Vincent Cotro
Vincent Cotro
