What is the use of isNaN function?
The `isNaN` function in JavaScript is used to determine whether a value is `NaN` (Not a Number). This function is particularly useful because `NaN` is a special numeric value that represents a result of an undefined or unrepresentable mathematical operation. For example, in JavaScript, when you try to perform a mathematical operation that[ ► ]
What are JavaScript Data Types?
JavaScript, a widely used programming language, especially for web development, supports several data types. Here’s an overview of the key data types in JavaScript: Number: This type represents both integer and floating-point numbers. Examples include 42, 14, etc. String: Strings are sequences of characters used for text. They can be enclosed in single[ ► ]
