typeof - JavaScript | MDN
Jul 8, 2025 · The typeof operator returns a string indicating the type of the operand's value.
JavaScript typeof Operator - W3Schools
Note You cannot use typeof to define if a JavaScript object is an array or a date. Both array and date return object as type.
typeof - Wikipedia
typeof, alternately also typeOf, and TypeOf, is an operator provided by several programming languages to determine the data type of a variable. This is useful when constructing programs that must accept …
JavaScript typeof Operator - Programiz
In this tutorial, you will learn about JavaScript typeof operator with the help of examples.
JavaScript Typeof for Data Types: Array, Boolean and More | Built In
Apr 11, 2025 · The typeof operator in JavaScript checks and returns a string of the data type of a variable. It can return up to nine possible data types for JavaScript variables, including string, …
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 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.
JavaScript Typeof - Data Type Checking - ZetCode
Apr 16, 2025 · Learn how to check data types in JavaScript using the typeof keyword, with examples and best practices.
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", etc.
typeof - MDN Web Docs
The typeof operator returns a string indicating the type of the unevaluated operand.