How to use Rsync to sync local and remote directories?
Rsync is a powerful tool for syncing files and directories between local and remote systems. It is a popular choice […]
How To Transform JSON Data with jq?
One of the most popular tools for working with JSON is jq, a command-line tool that is designed to manipulate […]
How to build React applications faster with Bun?
React is a popular JavaScript library for building user interfaces. Bun is a build tool that is designed to work […]
How to setup a React project with Vite?
React is a popular JavaScript library used for building dynamic user interfaces. Vite, on the other hand, is a fast […]
Top ReactJS Security Vulnerabilities and How to Fix Them
In recent years, ReactJS has become a popular choice for web application development. However, as with any technology, there are […]
How to Format Dates in Python?
When working with dates in Python, it’s important to know how to format them properly. In this article, we will […]
Reading a file line by line with Python
Python is a popular scripting language that is widely used for data analysis, automation, and web development. By reading a […]
Executing shell commands with Python
When working with Python, there may be times when you need to execute shell commands directly from your Python code. […]
Copying directories using SCP
SCP, or Secure Copy, is a command-line utility used to copy files and directories between two remote hosts over a […]
Writing to files with Python
Python provides several ways to write data to a file, including using the built-in open() function and the with statement. […]
Validating SSN using regular expressions in Java
Validating a Social Security Number (SSN) using regular expressions in Java is a common task when working with user input. […]
How to remove Docker images, containers and volumes?
Docker is a popular platform that allows developers to create, deploy, and run applications in containers. However, when working with […]
How to set focus on element after rendering with React?
When building web applications with React, you may want to set focus on a particular element after it has been […]
Collect Stream into Unmodifiable List, Set or Map with Java 8
Java 8 introduced a new Stream API that makes it easy to process collections of data. One of the most […]
How to Change Port for Spring Boot Applications
Spring Boot is a popular framework used to develop Java-based web applications. By default, Spring Boot applications run on port […]
Reading and Writing XML Files in Python with Pandas
XML files are a common data format used for exchanging data between different systems. Python provides several libraries for parsing […]
Resizing images in React
Resizing images is a common task in web development, especially when it comes to optimizing website performance. In React, there […]
Concatenating strings in Bash
Concatenating strings in Bash is a common task that you may come across when working on shell scripts. This article […]
How to Work with PostgreSQL in Python?
PostgreSQL is a popular open-source relational database management system. It offers many advanced features and is widely used in production […]
Aligning images in React Native
Aligning images in React Native is a crucial aspect of building any mobile app. In this tutorial, we’ll go over […]
Simple event emitter and listener in Node.js using callbacks
Callbacks can be used to write clean implementations of anything Promises in Node.js. This is a sample code for an […]
Read files in Node.js using callbacks
Callbacks can be used to write clean implementations of anything Promises in Node.js. This is a sample code to read […]
Pull down loading in Vue 3 using Composition API
Use the Composition API in Vue 3 to implement the pull-down loading function more conveniently. In the setup function, functions such […]
Anti-shake throttling in JavaScript
Anti-shake and throttling are both ways to solve performance problems caused by high-frequency trigger events. Anti-shake means that after the […]
Enable GCP Audit logging using Terraform
Data Access Audit logs are disabled by default as its cost depends on the usage. To enable them using Terraform […]
One line PowerShell scripts to start MS Office apps to start with blank documents
To start a blank PowerPoint presentation: To start a blank Word document: To start a blank Excel document: To start […]
Check whether a file exists or not in a Google Cloud Storage bucket using gsutil
The gsutil stat command provides a strongly consistent way to check for the existence (and read the metadata) of an […]
Aggregated free testnet faucets for all blockchain networks
A Curated list of Testnet faucets for Ropsten, Goerli, Kovan, Polygon/Mumbai, FantomTest, Sokol, Aurora etc. Networks Etherspot Etherspot testnet PoA […]
Android — Basic Hilt setup with viewmodel + fragment
Hilt is a modern android DI framework for dependency injection. It is merely a wrapper around Dagger2. Forget dagger-android, hilt brings […]
How to install a specific nodejs version according to the workspace with pnpm?
You install a particular version of nodejs according to a workspace with pnpm. For installation, you need a .npmrc file. Steps Create […]
Android — Instrumentation test with hilt
Testing in Android has been a pain from the beginning and there is no standard architecture setup to execute the […]
Android Utility belt — Collection of dependencies for a greenfield project
[ Originally published at https://mahendranv.github.io/posts/android-gradle-deps-kit ] Starting an android project will bring in a new set of challenges 👀 aka […]
Access JavaScript property case-insensitively
You can alternatively already provide the searchKey in lowercase. If you want it as a function: If the key can’t […]
How to read command line arguments in NodeJS?
Let’s assume you are passing a few values from the command line when you are running a node command. These […]
Sort the list of file names using ls command
To list only the file names using ls command we can pass -a option to it. You can sort the […]
Flatten an irregular list of lists in Python
Let’s say I would like to flatten an irregular list of lists. First approach is by using collections.Iterable where x […]
Split a list into evenly sized chunks in Python
where l is the list and n is the number of items in a chunk. Use xrange() instead of range() in the case of […]
Create a flat list out of a list of lists in Python
Let’s take a list of lists. To merge this lists to a flat list you can use the following ways. […]
Rename keys in an array of objects using JavaScript
I have an array of country objects. In this array I would like to replace the key name with country. […]
TypeError: ‘str’ object does not support item assignment – Python error – How to fix?
Python strings are immutable and they cannot be changed during the course of Python program execution. In Python, strings cannot […]
Warning: Each child in a list should have a unique “key” prop – How to fix this react error?
When creating a list in the UI from an array with JSX, you might get this error. To fix this […]
Kill all processes running on a port in Linux
To kill all processes running on the port 8080:
Update counter on click of button in React
In this example, the counter is updated every time the user clicks on the Update Counter button, the page is refreshed and […]
Generate random string with only numbers or alphabet in JavaScript
This is a simple approach to generate random string with either numbers or letters using a predefined set.
Optional Chaining in JavaScript
Have you ever had to check for the existence of objects or arrays before accessing its properties using && ? […]
Curly hair, very fair, please share :)
Importing JSON into a MongoDB collection
Use the mongoimport utility to import data into a MongoDB database. MongoDB provides the mongoimport utility that can be used to import JSON, CSV, […]
Differences between java.util.Date and java.sql.Date in Java
Handling dates is tricky in Java just like handling JSON in Java. This confusion lets developers use libraries like Joda […]
Unsupported projection option: sort – Mongoose error – How to fix?
UnhandledPromiseRejectionWarning: MongoError: Unsupported projection option: sort is an error that is thrown when you pass sort options into mongoose schema […]
Convert an Object to an Array in JavaScript
In this post, we will see how to convert an object to an array in JavaScript. To achieve this we […]
How to create a new user and grant permissions in MySQL?
MySQL is a popular open-source relational database management system used for web applications. Creating a new user and granting permissions […]
Get URL without query string in C#
Sometimes you may need to ignore the query params in a URL. You can use the following code snippets to […]
OutOfMemoryError and GC overhead limit in Maven’s surefire plugin – How to resolve?
When you run into OutOfMemoryError when running unit tests in Maven, you have to set the Java Heap Memory in the maven-surefire-plugin inside the pom.xml. Surefire usually runs […]
SonarQube setup error – java.lang.IllegalStateException: SonarQube requires Java 11+ to run – Solution – Install Java 11
This tutorial helps you install Java 11 on Linux based machines to resolve SonarQube errors. When you are setting up […]