Simplifying Maps in the JavaScript

Maps is a data structure, which stores the key/value pair in an ordered way.  Since the inception of the JavaScript, objects are primarily used for the map.  Consider the below code listing:   To store two key/value pairs, we have created an object foo and using the keys such as id and color to retrieve … Continue reading Simplifying Maps in the JavaScript

What is “let” statement in JavaScript?

Using the let statement, you can create Block scoped local variables in JavaScript. The let statement was introduced in the ECMAScript 6 standard of JavaScript. Before ECMAScript 6, JavaScript had three types of scoping: Global scoping Functional scoping Lexical scoping To explore let statement in detail, consider the code snippet given below: You will … Continue reading What is “let” statement in JavaScript?