We can execute external command or any process from the node js. With the help of child_process module we can achieve it. 1. var spawn = require('child_process').spawn, ls = spawn('cmd.exe',…
The btoa() function takes a JavaScript string as a parameter. In JavaScript strings are represented using the UTF-16 character encoding: in this encoding, strings are represented as a sequence of 16-bit (2…
Objects in JavaScript can be thought of as maps between keys and values. We can remove these keys, more commonly known as object properties. In this tutorial, we will learn…
There may be a requirement to merge or flatten the array of array for better representation or readability. There are various ways to achieve this in javascript. We will try…
Sometime we need to get last element of array. Even when we do not know size of array. There are several way to achieve it. Lets explore few ways. 1.…
We can generate fixed length random number using Math.random() function. Math.random can generate number between 0 to 1. We can use this to generate any length random number. function randomNumber(length)…
Using NodeJS we can create ssh connection to send file or executing any command on Linux based server. Here we are using npm module ssh2 for sftp connection to transfer…
In our code object can empty or not. So we need to check object is empty or not. There are several way to check object in valid or not. Let…
