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How to append content in a file?

On January 2, 2023January 2, 2023 By admin

What is appendfile() function? We can also use the fs module to append the content using appendFile function into a file. However, appendFile function will create the file if the file doesn’t exist or append the content into the file, if the file already existed. Let’s create a folder structure […]

How to list directory files?

On December 19, 2022December 6, 2022 By admin

Node.JS also contains module that allows us to communicate with the file system. The FS module can be used to list files in directories, create new files in directories, stream files, video files, modify files permissions and etc. Here we have two ways to read the content of directory synchronously, […]

What is Require function & how to export custom module?

On December 6, 2022December 6, 2022 By admin

In Node.JS, Every JavaScript file is its own module and So far we have been loading module using the require function. What is Require function? The require function is the part of common JavaScript module. But it is only half part and the other half of the part is module.exports […]

What is React context good for & how to use?

On November 28, 2022November 26, 2022 By admin

Before diving in what is React context? Let’s first understand why do we need it with an example. Let’s consider a scenario where we have 6 components A,B,C,D,E & F. some are the child components please refer the below image for better understanding. Here A,B & C are first level […]

What and how to use Readline?

On October 22, 2022October 21, 2022 By admin

Readline is a core module of NodeJS that is available to us without having to install anything other than NodeJS. It can be used ask/read data of a terminal user. Suppose we are creating an application that would ask questions from a terminal user. It is an interface where we […]

What are and how to use objects?

On August 31, 2022August 30, 2022 By admin

What are objects? JavaScript is a prototype based object oriented Programming language. so basically we work with objects of these prototypes. Let me put it in simpler terms that these objects are similar to real world object. e.g. Book, so how can we recognize anything that it is book or […]

How To Fetch Rows And Columns From The Table?

On June 28, 2021October 3, 2021 By admin

Hi everyone 🙂 Hope you are doing great. Today we are going to learn about SQL Commands. The SQL commands are categorized into four categories; DQL DDL DML DCL Firstly we are getting to study DQL category commands; There are more easy-to-learn commands 😉 Let’s start! DQL (Data Query Language) […]

How To Make Text Input Field In React Native?

On June 7, 2021October 3, 2021 By admin

TextInput is React Native’s core component. It allows the user to take the input. There are many Props (properties) that make, TextInput useful for us. defaultValue : Used to show default value before value being changed by users. onChangeText : This allows the user to take a function i.e. called every […]

Does Fundamentals Of React Also Used In React Native?

On May 31, 2021October 3, 2021 By admin

Yes, React native runs on React. React is one of popular Open source Javascript library, used for building user interfaces with help of Javascript. There are some core concepts behind the React, those are also used in the React Native. Components: Components are like Java Script functions. It let us […]

How to use Super Variables in PHP?

On May 24, 2021October 2, 2021 By admin

Hey all, Today we are going to learn about PHP Super Global Variables and how can we use them. The Super global variables are those variables which can be access always. we can access these variable in any function, any file. There are the various type of PHP Super Global […]