Tutorials

JavaScript introduced the class syntax in 2015 to create objects, resembling patterns found in Java and C++. A class includes a constructor method to initialize properties. JavaScript lacks public and private property enforcement, necessitating best practices. Methods can be added without the function keyword. Constructor overloading isn’t supported, but default values can be assigned.

Loops in JavaScript work the same way as they do in most other languages, especially those in the C family of languages. You have traditional condition loops, – while and do-while, and a for counting loop. These are the most common forms of a loop. JavaScript also supports several additional loops that are specific to…

You can create functions in different ways in Javascript. Now a function in JavaScript works similar to any other language where it allows you to break out of the normal flow of your code, and then run a separate block of code. Calling a JavaScript Function Calling a JavaScript function is the same as it…

JavaScript’s conditional operators are like those in most C/C++ styled languages. Assume that x = 5 in the series of statements below: Operator Description Comparing Returns == equal to x == 7 false x == 5 true x == “5” true != not equal to x != 8 true x != 5 false > greater…

JavaScript is a dynamically typed language, which means that it assigns the type based upon how it is used. The data type can change as values, and their types, change as the program executes. Without care of the data types, this can cause errors to occur. Consider the following code: We can test this theory…

In JavaScript, developers can make variable declarations in three different ways. Each has diferent implications for the program they are writing, which can cause some confusion. Variable declaration can be accomplished by using var, let, or by simply assigning a value with no declaration keyword (e.g., x = 5). Understanding the differences between x =…

Understanding the history and evolution of JavaScript is crucial for appreciating its current role in the tech ecosystem as well as some of the challenges that occur in programming in JavaScript. Here are some key highlights that will give you a sense of how JavaScript became what it is today: Birth of JavaScript (1995) JavaScript…