Automatically Resize All Columns to Fit in Ag-Grid
If you have an Ag-Grid, and want to automatically resize all the columns to fit the width of the viewport, you can use this hack.
Technical Articles
In-depth guides, insights, and best practices for modern software engineering
How to Get All Rows in Ag-Grid
The easiest way to get the content of all rows’ data, back into a Javascript/Typescript array, is as follows.
Simply create a blank array, then …
Read Article →Find the Max Area of an Island in Python
The challenge
You are given an m x n binary matrix grid. An island is a group of 1‘s (representing land) connected 4-directionally (horizontal or …
Using Apache POI to Get or Create a Sheet in Excel using Java
Apache POI provides a mechanism to work with Excel documents.
However, it has a missing feature when you want to only create a new sheet if one with …
Read Article →A Simplistic TCP Finite State Machine (FSM) in Python
The challenge
Automatons, or Finite State Machines (FSM), are extremely useful to programmers when it comes to software design. You will be given a …
Read Article →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 →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 …
How to Divide an Array into Chunks in PHP
If you have a single-dimensional array, and want to break it into chunks, you can use the array_chunks method.
It takes 3 arguments:
- The input array …
How to setup Certbot wildcard certificate on Apache
Certbot allows simple, quick and free provisioning of SSL certificates using LetsEncrypt.
How to install Certbot
Option 1 (recommended)
sudo snap …How to retrieve a Secret from AWS Secrets Manager in the CLI
If you have stored a secret in AWS using the Secrets Manager, it is possible to use the AWS CLI to retrieve this value at a later date.
aws …
Determine the Last Digits of N^2 == N in Java
The challenge
Let’s call an integer number N ‘green’ if N² ends with all of the digits of N. Some examples:
5 is green, because 5² = 25 …
How to Expose your App through a Service in Kubernetes
Once you have deployed an application into Kubernetes, it will not be available to the outside world.
For this to be possible, you need to expose it …
Read Article →How to connect to Bash on a Kubernetes pod
If you find yourself needing to jump into a Kubernetes pod to either diagnose an issue, or run a particular command, you can use the bash connectivity …
How to get the Environment variables in a Kubernetes Pod
In this comprehensive guide, you will learn how to effectively get and list environment variables within a Kubernetes pod. Understanding how to work …
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