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71 questions
Hard
25 votes2519 runs
1 comment

Write a Python function that prints the elements of a list.

Back-end developer
list
for loop
Anonymous authorat Mar 28, 2022
Hard
13 votes2848 runs0 comment

Which of the following statements are true ?

Back-end developer
functions
variables
Anonymous authorat Mar 28, 2022
Medium
12 votes2286 runs0 comment

Use the zip() function to iterate over two lists in parallel.

Back-end developer
list
zip
Anonymous authorat Mar 28, 2022
Hard
11 votes2878 runs
3 comments

What type of array is the following?

Back-end developer
arrays
multidimensional
bidimensional
Anonymous authorat Mar 28, 2022
Easy
11 votes2256 runs0 comment

What type is `function_a` in the following code ?

Back-end developer
functions
decorators
Anonymous authorat Mar 28, 2022
Medium
10 votes2933 runs0 comment

What is the value of the `PHP_FLOAT_MIN` variable?

Back-end developer
constants
float
Anonymous authorat Mar 28, 2022
Medium
10 votes2559 runs0 comment

Start a HTTP server from the CLI with python

Back-end developer
cli
http
Anonymous authorat Jan 23, 2023
Medium
9 votes2793 runs
8 comments

Which of the following statements are true ?

Back-end developer
php
arrays
Anonymous authorat Mar 28, 2022
Expert
8 votes2124 runs0 comment

Find the word 'lazy' in a sentence using Python

Back-end developer
regex
python
Anonymous authorat Mar 28, 2022
Medium
7 votes2798 runs0 comment

What are the risks when running the following code ?

Back-end developer
security
xss
Anonymous authorat Mar 28, 2022
Medium
7 votes2131 runs0 comment

Write a PHP class with a constant and a public method that outputs the constant.

Back-end developer
constants
classes
Anonymous authorat Mar 28, 2022
Hard
6 votes2722 runs
1 comment

Usage of the global scope in a PHP function.

Back-end developer
functions
variables
Anonymous authorat Mar 28, 2022
Hard
6 votes2630 runs
1 comment

Usage of the spaceship operator in a PHP loop.

Back-end developer
comparison
operators
Anonymous authorat Mar 28, 2022
Hard
6 votes2276 runs0 comment

What is the difference between the `__repr__()` and `__str__()` methods in Python?

Back-end developer
methods
python
Anonymous authorat Mar 28, 2022
Medium
6 votes2138 runs0 comment

What do `a^b`, `a|b` and `a-b` respectively represent in Python ?

Back-end developer
sets
union
difference
Anonymous authorat Mar 28, 2022
Easy
5 votes2450 runs0 comment

Using the ternary operator to choose between two strings in PHP.

Back-end developer
ternary operator
strings
Anonymous authorat Mar 28, 2022
Hard
5 votes2110 runs
2 comments

Write a Python function that returns a list of numbers divisible by 3 from 0 to 9.

Back-end developer
list
filter
Anonymous authorat Mar 28, 2022
Medium
4 votes2515 runs0 comment

Use array_map to get the length of each string in an array in PHP

Back-end developer
arrays
functions
Anonymous authorat Mar 28, 2022
Medium
4 votes2474 runs0 comment

Write a PHP function that adds two numbers and returns an integer.

Back-end developer
functions
types
Anonymous authorat Mar 28, 2022
Hard
4 votes2140 runs0 comment

Print the elements of a list using an iterator in Python

Back-end developer
iterators
lists
Anonymous authorat Mar 28, 2022