Arrow functions vs regular functions in JavaScript Jun 8, 2020 How to return multiple values from a function in JavaScript Jun 7, 2020 How can you tell what type a value is, in JavaScript? Jun 6, 2020 Primitive types vs objects in JavaScript Jun 5, 2020 DOM events: stopPropagation...
How can an undeclared variable have a type? And what is type of undeclared variable in JavaScript? Learn all about it in this blog post.
In non-strict mode, if you pass a primitive value as the “this” binding, the primitive value will be coerced to its object-wrapped form. Variation of Explicit Binding Unfortunately, there is a possibility of losing the intendedthisbinding or having it set to the global object when passing ...
Therefore, you should test your JavaScript script in all popular web browsers, including their older versions, to avoid harming the user experience. Security ‒ JavaScript code that runs on the client-side is vulnerable to exploitation by irresponsible users. Debugging ‒ while some HTML editors...
The interesting trivia about this language feature is that it isalready implementedin a number of JavaScript engines. This is one of many cases where the browsers are helping push the language forward. Bigger Numbers withBigInt We may see aBigIntprimitive for whole numbers larger than the curren...
First, Primitive Data Types. Second, Composite Data Types. Let's understand the details of all these data types in the following sections. What are Primitive Data Types in JavaScript?: These are the predefined types of data that are supported by the programming language. JavaScript mainly support...
Java is easy to learn.With a simple syntax that's similar to C++, Java is relatively easy to learn, especially for those with a background in C or C++. Here are some features that make Java popular: object-oriented programming, portability and use of bytecode, to name a few. ...
What is instantiation in JavaScript? InJavaScript, instantiation describes the creation of an object. JavaScript programmers can achieve this by using one of the five available patterns: Functional Functional-shared Prototypical Pseudoclassical ES6 ...
In JavaScript, null is a primitive value that represents the intentional absence of any object value. It's often used to indicate that a variable or property intentionally holds no value or that an object reference points to nothing. null is a distinct value from undefined and has its own ...
Using Set to create HashSet behavior in JavaScript In JavaScript, the Set object is a collection of unique values. It can be created by calling the Set constructor. The values in a Set can be of any type, including primitive values and objects. The keys and elements have an insertion orde...