How to Count Characters in a Javascript String
The challenge
The main idea is to count all the occurring characters in a string. If you have a string like aba, then the result should be {'a': 2, …
Technical Articles
In-depth guides, insights, and best practices for modern software engineering
How to Increment/Decrement a value in React/NextJS
Use the following code block to get started:
function GetCount() {
const [count, setCount] = useState(1);
const incrementCounter = () => { …How to disable text selection highlighting in CSS
If you would like to disable the text selection highlighting that is enabled by default on all browsers, then you can do this:
user-select: none;
If …
Read Article →Irreducible Sum of Rationals in Golang
The challenge
You will have a list of rationals in the form:
lst = [ [numer_1, denom_1] , ... , [numer_n, denom_n] ]
where all numbers are positive …
Read Article →How to copy S3 objects between AWS accounts
In your source account create a customer-managed policy:
{
"Version": "2012-10-17",
"Statement": [
{ …How to find all symlinks in a directory tree on Mac
If you need to recursively find all symbolic links in a directory tree on a Mac, then you have a couple of options.
You could be trying to find them …
Read Article →How to Install App Mesh on AWS EKS
You can follow the steps below to install App Mesh on AWS EKS (Kubernetes).
Step 1 – Prerequisites
curl -o pre_upgrade_check.sh …[Solved] Kubernetes Namespace stuck in Terminating state
If you have tried to delete a Kubernetes namespace, and it has been hanging in ‘deleting’ for hours on end, it’s likely that you have …
Read Article →[Solved] Error creating: pods “my-service-a-xxx” is forbidden: error looking up service account my-apps/my-service-a: serviceaccount “my-service-a” not found
So you’ve run a deployment and tried to check the pods and there’s nothing there!
kubectl get pods
Next step is to see what’s …
Read Article →[Solved] error: src refspec main does not match any
If you get the following error:
error: src refspec main does not match any
error: failed to push some refs to 'https://github.com/ao/xxx.git' …How to Force a Redeploy in Kubernetes
If you need to force a redeploy of a deployment in Kubernetes, then you can use the rollout feature.
You may have an image that has been updated, but …
Read Article →How to Print to stdout in Flask using Python
If you are trying to print() to the console/stdout in your Flask app, but nothing is happening, then you just need to flush your prints, as follows: …