How to Double Characters in Python
The challenge
Given a string, you have to return a string in which each character (case-sensitive) is repeated once.
double_char("String") …Technical Articles
In-depth guides, insights, and best practices for modern software engineering
How to Reverse Words in Python
The challenge
Complete the function that accepts a string parameter, and reverses each word in the string. All spaces in the string should be …
Read Article →How to Count by X in Python
The challenge
Create a function with two arguments that will return an array of the first (n) multiples of (x).
Assume both the given number and the …
Read Article →Calculate the Sum of Pairs in Python
The challenge
Given a list of integers and a single sum value, return the first two values (parse from the left please) in order of appearance that …
Read Article →How to break a list into multiple lists (with maximum size) in Python
If you have a large list and want to create smaller lists of it, with a maximum amount of elements, then:
commands = [str(i) for i in range(100)] …Get all dates between two dates inclusive in Python
If you want to print out a list of all dates between 2 dates (a date range), then you can use the following script:
from datetime import date, …How to Append a Python Dictionary to a Pandas DataFrame
If you want to append a Python dictionary to a Pandas DataFrame, you can do this:
# Create a new DataFrame
output = pd.DataFrame()
# Append the …Get Secret from AWS Secrets Manager in Python
You can store secrets in AWS Secret Manager and reference their ARN in AWS Systems Secret Manager.
The below snippet allows you to specify the …
Read Article →How to do Binary Addition in Python
The challenge
Implement a function that adds two numbers together and returns their sum in binary. The conversion can be done before or after the …
Read Article →How to Auto-Adjust Excel column widths with pandas.ExcelWriter
You have successfully written your pandas Dataframe to an Excel file, but when you open it, all the columns are squashed up against each other.
There …
Read Article →How to Sort the Odd in Python
The challenge
You will be given an array of numbers. You have to sort the odd numbers in ascending order while leaving the even numbers at their …
Read Article →Calculate the Sum of the two lowest positive integers in Python
The challenge
Create a function that returns the sum of the two lowest positive numbers given an array of minimum 4 positive integers. No floats or …
Read Article →Unique In Order in Python
The challenge
Implement the function unique_in_order which takes as argument a sequence and returns a list of items without any elements with the same …
How to Change the Hostname on Linux
On Linux, you can change the hostname by using the hostnamectl command.
You’ll typically need to do this right after provisioning a new server, …
Read Article →How to Deploy a Docker Container to Kubernetes
Once you have a Docker container, it is really simple to deploy containers to Kubernetes.
Generate a Deployment YAML
kubectl provides a fantastic way …
How to Replace Characters with Alphabet Positions in Python
The challenge
Given a string, replace every letter with its position in the alphabet.
If anything in the text isn’t a letter, ignore it and …
Read Article →Returning Highest and Lowest in Python
The challenge
You are given a string of space-separated numbers and have to return the highest and lowest number.
Example:
high_and_low("1 2 3 4 …How to Subtract Arrays in Python
The challenge
Implement a difference function, which subtracts one list from another and returns the result.
It should remove all values from list a, …
How to Detect if Numbers are in Order in Golang
The challenge
In this challenge, your function receives an array of integers as input. Your task is to determine whether the numbers are in ascending …
Read Article →Alternate Capitalization in Golang
The challenge
Given a string, capitalize the letters that occupy even indexes and odd indexes separately, and return as shown below. Index `` will be …
Read Article →Check if a String is Uppercase in Golang
The challenge
Create a method IsUpperCase to see whether the string is ALL CAPS. For example:
type MyString string
MyString("c").IsUpperCase() …How to UpperCase a String in Golang
In Go, there are multiple ways to make a string UpperCase, each of them are by using the strings package.
Option 1 (strings.ToUpper):
func ToUpper(str …
Return the Shortest Words in Golang
The challenge
Given a string of words, return the length of the shortest word(s).
The input string will never be empty and you do not need to account …
Read Article →How to Solve Pascal’s Triangle in Python
The challenge
Given an integer numRows, return the first numRows of Pascal’s triangle.
In Pascal’s triangle, each number is the sum of the …
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