JavaScript from Frontend to Backend

Table of Contents

Preface

Part 1: JavaScript Syntax

Chapter 1: Exploring the Core Concepts of JavaScript

Technical requirements

Types of variables used in JavaScript

Numerical values

Boolean values

Character strings

Arrays

Objects

Running a JavaScript program

Running a JavaScript program in a browser

Running a JavaScript program on a Node.js server

Differences between JavaScript code written for the browser and the server

Declaring variables in JavaScript

Using the const keyword

Using the var keyword

Using the let keyword

What if we don’t use var or let to define a variable?

What is an uninitialized variable worth?

Writing conditions for conditional tests

Forms of writing instructions

Expressions used to write conditions

Nested test suites