Understanding ES6, JavaScript is a superset of ECMAScript 6. In this article I will explain the main datatypes ES6 has included in its palate and will explain the difference between var, let and const datatypes.
Category: Javascript
Manipulate JSON document easily with JMESPath
JMESPath is a query language for JSON. Best use is to filter a big JSON document and to get desired new array from it. JMESPath is used to simplify the filtration of JSON Object.
Manage multiple Node.js versions using NVM
NVM is a tool which handles multiple versions of Node.js. NVM allow us to install multiple version of the Node.js and maintains them. We can choose whichever version of the Node.js we want and go back to the default with the help of NVM.
Email Harvesting and Counter Measures
Email harvesting means fetching email addresses by crawling web pages using various scripts/softwares. These email addresses then used for sending bulk marketing emails or newsletters/spams. There are lots of softwares/bots available in the market which crawls the website and gives email address from its pages. These softwares are generally known as "Harvesting Bot".
Difference Between Promises & Callbacks
A Promise is a value which may be available in future or not. A Callback is a function which we call inside another function. Normally callback runs after the parent function completes its operation.