Job offers
Companies
Tests
Blog
I'm an employer
Sign up
Log in
Group 2@2x
Created with Sketch.
Home
>
Users
>
Vincent Cotro
Vincent Cotro
Contribution
1866
Contributions
105734
Contributions played
Tests
44
Tests completed
525
Questions completed
Moderation
145
Questions
47
Ratings
Achievements
+2
Profile
Tests
Contributions
Profile
Tests
Contributions
Achievements
Submit a new question
or
see all questions
Easy
80
Medium
56
Hard
35
Expert
11
Technology
Profession
Test
Sort by
Newest
Most popular
Last review
Filter by
Published
145
Not published
37
To review
0
Published
To review
Newest
Filters
Easy
80
Medium
56
Hard
35
Expert
11
Technology
Profession
Test
Sort by
Newest
Most popular
Last review
Filter by
Published
145
Not published
37
To review
0
Cancel
145 questions
Hard
53 votes
2542 runs
4 comments
Understanding the differences between `map()` and `forEach()` methods in JavaScript
Web developer
Vincent Cotro
at Jan 18, 2024
Medium
28 votes
2339 runs
3 comments
Write a JavaScript function that fetches data from an API and logs it to the console.
Web developer
promises
async
Vincent Cotro
at Mar 28, 2023
Easy
26 votes
1144 runs
1 comment
Write a Python function that returns the factorial of a number.
Back-end developer
recursion
Vincent Cotro
at Mar 28, 2023
Easy
23 votes
2002 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
Vincent Cotro
at Mar 30, 2023
Easy
21 votes
1300 runs
1 comment
Explain the difference between the `include` and `require` functions in PHP.
Back-end developer
functions
errors
Vincent Cotro
at Mar 24, 2023
Easy
12 votes
1930 runs
1 comment
Update a column in an SQL table
Back-end developer
sql
update
Vincent Cotro
at Nov 7, 2023
Easy
11 votes
1977 runs
0 comment
Select only distinct values in a column using SQL
Back-end developer
sql
distinct
Vincent Cotro
at Mar 27, 2023
Easy
9 votes
1987 runs
0 comment
Write a SQL query to insert data into a table
Back-end developer
sql
insert
Vincent Cotro
at Mar 27, 2023
Easy
9 votes
1969 runs
0 comment
Which SQL keyword is used to sort the result of a SELECT statement?
Back-end developer
sql
order by
Vincent Cotro
at Mar 27, 2023
Medium
8 votes
1928 runs
4 comments
Write the SQL query to delete a column from a table
Back-end developer
sql
table
column
Vincent Cotro
at Mar 27, 2023
Easy
8 votes
1884 runs
0 comment
Write a SQL query to retrieve the products with a price less than 1000 and sort the results in descending order of price.
Back-end developer
sql
order by
descending
Vincent Cotro
at Mar 28, 2023
Easy
8 votes
757 runs
1 comment
Write a SQL query to retrieve the titles of books written by 'John Smith'.
Back-end developer
join
inner join
sql
Vincent Cotro
at Sep 6, 2023
Easy
6 votes
1266 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
Vincent Cotro
at Apr 5, 2023
Easy
6 votes
1043 runs
2 comments
Use the `useContext` hook to render a button with a dark theme.
Web developer
react
context
hooks
Vincent Cotro
at Nov 7, 2023
Easy
6 votes
822 runs
0 comment
Which of the following utility types makes all properties of a given type optional?
Web developer
typescript
types
Vincent Cotro
at Mar 29, 2023
Easy
5 votes
1963 runs
0 comment
How to delete an SQL table?
Back-end developer
sql
tables
Vincent Cotro
at Mar 27, 2023
Easy
5 votes
1544 runs
1 comment
Write a SQL query to retrieve employees with a salary higher than the average salary.
Back-end developer
sql
average
select
Vincent Cotro
at Mar 28, 2023
Medium
5 votes
853 runs
1 comment
Change the style of a button using the `useState` hook in React.
Web developer
react
state
style
Vincent Cotro
at Apr 10, 2023
Easy
5 votes
817 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
Vincent Cotro
at Mar 31, 2023
1
2
3
4
5
…
8
Hard
5 votes
2822 runs
2 comments
Print the number of countries in the array travel.
Web developer
array
for loop
at Sep 5, 2022
Vincent Cotro
