How to Resolve Scaling Squared Strings in Java
The challenge
You are given a string of n lines, each substring being n characters long. For example:
s = "abcd\nefgh\nijkl\nmnop"
We will …
Read Article →Technical Articles
In-depth guides, insights, and best practices for modern software engineering
How to Build a Square in Python
The challenge
I will give you an integer. Give me back a shape that is as long and wide as the integer. The integer will be a whole number between 1 …
Read Article →Check if String EndsWith in Python
The challenge
Complete the solution so that it returns true if the first argument(string) passed in ends with the 2nd argument (also a string). …
Read Article →How to add a Git Submodule to an existing codebase
Git submodules are a way of including another repository’s code into an existing codebase, without associating it’s code or tracking …
Read Article →How to LowerCase a String in Python
Python comes with a built-in method on all String types, by calling lower() on a String, you can immediately lower the case of that String.
An example …
Read Article →How to Restart Sound Driver on a Mac
So for some strange reason, your audio has stopped playing through the Macbook Pro speakers, but if you plug in an external audio device, it still …
Read Article →Number to Binary Conversion in Python
If you have a decimal number, and want to get it’s binary value, you can use the built-in bin method.
decimal = 32
binary = bin(decimal)
# …Counting Binary Gaps with Python
The challenge
A binary gap within a positive integer N is any maximal sequence of consecutive zeros that is surrounded by ones at both ends in the …
Read Article →How to Delete a Secret in Kubernetes
Once you have a secret in Kubernetes, if you know it’s name, you can delete it.
How to find the secret name
You can get the secret name as …
Read Article →How to Decode a Secret in Kubernetes
Secrets in Kubernetes are encoded using base64.
If you have the secret name, you can ask for its value. If not, then learn how to get a secret in …
Read Article →How to Verify a Secret in Kubernetes
You have created a secret, and would like to retrieve it.
Get a list of all the secrets in Kubernetes
kubectl get secrets
This will result in:
NAME …How to Create a Secret in Kubernetes
Secrets allow applications to not hardcode usernames, passwords or additional information such as hostnames, IP addresses or other protected/sensitive …