
JavaScript typeof - W3Schools
JavaScript has 7 primitive data types: The typeof operator returns the type of a variable or an expression. In JavaScript, null is a primitive value. However, typeof returns "object". This is a …
typeof - JavaScript | MDN - MDN Web Docs
Apr 3, 2025 · The typeof operator returns a string indicating the type of the operand's value.
JavaScript TypeOf – How to Check the Type of a Variable or …
Nov 9, 2020 · JavaScript has a special operator called typeof which lets you get the type of any value. In this article, we will learn how typeof is used, along with a few gotchas to watch out …
JavaScript typeof
In this tutorial, you'll learn how to use the JavaScript typeof operator that returns a string representing the type of a value.
JavaScript typeof Operator - GeeksforGeeks
Dec 13, 2024 · The typeof operator in JavaScript is used to determine the data type of a value or variable. It returns a string indicating the type, such as “string”, “number”, “boolean”, “object”, …
JavaScript Type Checking – How to Check Type in JS with typeof()
Dec 9, 2022 · In this article, you will learn how to use the typeof operator, instances when you should not use typeof, and the best way to check type in JavaScript for such instances. …
What Is the Typeof Operator: Examples, Usecase & More
Apr 12, 2025 · Typeof in JavaScript is an operator used for type checking and returns the data type of the operand passed to it. The operand can be any variable, function, or object whose …
JavaScript Data Types - W3Schools
Built-in object types can be: objects, arrays, dates, maps, sets, intarrays, floatarrays, promises, and more. A JavaScript variable can hold any type of data. In programming, data types is an …
Identifying Data Types with JavaScript's typeof Operator
Learn how JavaScript's typeof operator can help identify the data type of a value and how to use it for basic type checking and validation in your code.
JavaScript Data Types
JavaScript has the primitive data types: and a complex data type object. JavaScript is a dynamically typed language, meaning that a variable isn’t associated with a specific type. In …