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71 questions
1
2
3
4
Hard
16 votes
1768 runs
0 comment
Write a Python function that prints the elements of a list.
Back-end developer
list
for loop
at Mar 28, 2022
Medium
9 votes
1603 runs
0 comment
Use the zip() function to iterate over two lists in parallel.
Back-end developer
list
zip
at Mar 28, 2022
Hard
8 votes
2137 runs
0 comment
Which of the following statements are true ?
Back-end developer
functions
variables
at Mar 28, 2022
Medium
8 votes
1808 runs
0 comment
Start a HTTP server from the CLI with python
Back-end developer
cli
http
at Jan 23, 2023
Medium
7 votes
2124 runs
5 comments
Which of the following statements are true ?
Back-end developer
php
arrays
at Mar 28, 2022
Easy
7 votes
1605 runs
0 comment
What type is `function_a` in the following code ?
Back-end developer
functions
decorators
at Mar 28, 2022
Hard
6 votes
2178 runs
3 comments
What type of array is the following?
Back-end developer
arrays
multidimensional
bidimensional
at Mar 28, 2022
Medium
5 votes
2217 runs
0 comment
What is the value of the `PHP_FLOAT_MIN` variable?
Back-end developer
constants
float
at Mar 28, 2022
Medium
5 votes
1737 runs
0 comment
Write a PHP class with a constant and a public method that outputs the constant.
Back-end developer
constants
classes
at Mar 28, 2022
Expert
4 votes
1493 runs
0 comment
Find the word 'lazy' in a sentence using Python
Back-end developer
regex
python
at Mar 28, 2022
Hard
3 votes
2005 runs
0 comment
Usage of the spaceship operator in a PHP loop.
Back-end developer
comparison
operators
at Mar 28, 2022
Medium
3 votes
1892 runs
0 comment
Using the ternary operator to choose between two strings in PHP.
Back-end developer
ternary operator
strings
at Mar 28, 2022
Medium
3 votes
1566 runs
0 comment
How to count the number of occurences of a pattern in a string in PHP
Back-end developer
functions
regular expressions
at Mar 28, 2022
Easy
3 votes
1422 runs
0 comment
Read a file in Python
Back-end developer
file
list
at Mar 28, 2022
Hard
3 votes
781 runs
0 comment
What are the advantages of the `deque` type in the `collections` module?
Back-end developer
python
collections
deque
at Mar 28, 2022
Hard
2 votes
2121 runs
0 comment
What are the risks when running the following code ?
Back-end developer
security
xss
at Mar 28, 2022
Hard
2 votes
2061 runs
0 comment
Usage of the global scope in a PHP function.
Back-end developer
functions
variables
at Mar 28, 2022
Medium
2 votes
1975 runs
0 comment
What is the `is_long()` function for ?
Back-end developer
functions
integers
at Mar 28, 2022
Medium
2 votes
1887 runs
0 comment
Write a PHP function that adds two numbers and returns an integer.
Back-end developer
functions
types
at Mar 28, 2022
Medium
2 votes
1510 runs
0 comment
What do `a^b`, `a|b` and `a-b` respectively represent in Python ?
Back-end developer
sets
union
difference
at Mar 28, 2022
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