How to check properties on objects in JavaScript?
Check Properties exist Check Properties exist Syntax:- if (typeof object_name.key !== „undefined‟) Ex:- Check Properties exist in operator Syntax: – […]
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Visit MotoshareHow does constructor work in JavaScript?
Constructor Object instance are created with constructor, which is basically a special function that prepares a new instance of an […]
How does this javascript factorial function work?
Factory Function When a function returns an object, we call it a factory function. It can produce object instance without […]
Accessing Properties in JavaScript
Accessing Properties A property of an object is some piece of named data it contains. These are accessed with dotoperator […]
Object Oriented Programming in JavaScript
Object Oriented Programming Object-oriented programming (OOP) is a programming language model organized around objects rather than “actions” and data rather […]
Typeof operator in JavaScripts
The typeof operator is used to get the data type (returns a string) of its operand. The operand can be […]
Immediately Invoked Function Expression (IIFE)
IIFE (Immediately Invoked Function Expression) is a JavaScript function that runs as soon as it is defined.It is a design […]
What are arrow functions in JavaScript?
An arrow function expression (previously, and now incorrectly known as fat arrow function) has a shorter syntax compared to function […]
Define Function expression in JavaScript
Function Expression When we create a function and assign it to a variable, known as a function expression. Note: – […]
How does JavaScript scope work?
Variable Scope JavaScript has two scopes: – Global Local Global Scope A variable that is declared outside a function definition […]